21880530

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1$

素因数の和:270

約数の個数: 160

約数和(自身を含む): 71508096

約数和(自身を除く): 49627566

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 27, 30, 34, 35, 42, 45, 51, 54, 63, 70, 81, 85, 90, 102, 105, 119, 126, 135, 153, 162, 170, 189, 210, 227, 238, 255, 270, 306, 315, 357, 378, 405, 454, 459, 510, 567, 595, 630, 681, 714, 765, 810, 918, 945, 1071, 1134, 1135, 1190, 1362, 1377, 1530, 1589, 1785, 1890, 2043, 2142, 2270, 2295, 2754, 2835, 3178, 3213, 3405, 3570, 3859, 4086, 4590, 4767, 5355, 5670, 6129, 6426, 6810, 6885, 7718, 7945, 9534, 9639, 10215, 10710, 11577, 12258, 13770, 14301, 15890, 16065, 18387, 19278, 19295, 20430, 23154, 23835, 27013, 28602, 30645, 32130, 34731, 36774, 38590, 42903, 47670, 48195, 54026, 57885, 61290, 69462, 71505, 81039, 85806, 91935, 96390, 104193, 115770, 128709, 135065, 143010, 162078, 173655, 183870, 208386, 214515, 243117, 257418, 270130, 312579, 347310, 405195, 429030, 486234, 520965, 625158, 643545, 729351, 810390, 1041930, 1215585, 1287090, 1458702, 1562895, 2188053, 2431170, 3125790, 3646755, 4376106, 7293510, 10940265, 21880530]

約数ペア:

[(1, 21880530), (2, 10940265), (3, 7293510), (5, 4376106), (6, 3646755), (7, 3125790), (9, 2431170), (10, 2188053), (14, 1562895), (15, 1458702), (17, 1287090), (18, 1215585), (21, 1041930), (27, 810390), (30, 729351), (34, 643545), (35, 625158), (42, 520965), (45, 486234), (51, 429030), (54, 405195), (63, 347310), (70, 312579), (81, 270130), (85, 257418), (90, 243117), (102, 214515), (105, 208386), (119, 183870), (126, 173655), (135, 162078), (153, 143010), (162, 135065), (170, 128709), (189, 115770), (210, 104193), (227, 96390), (238, 91935), (255, 85806), (270, 81039), (306, 71505), (315, 69462), (357, 61290), (378, 57885), (405, 54026), (454, 48195), (459, 47670), (510, 42903), (567, 38590), (595, 36774), (630, 34731), (681, 32130), (714, 30645), (765, 28602), (810, 27013), (918, 23835), (945, 23154), (1071, 20430), (1134, 19295), (1135, 19278), (1190, 18387), (1362, 16065), (1377, 15890), (1530, 14301), (1589, 13770), (1785, 12258), (1890, 11577), (2043, 10710), (2142, 10215), (2270, 9639), (2295, 9534), (2754, 7945), (2835, 7718), (3178, 6885), (3213, 6810), (3405, 6426), (3570, 6129), (3859, 5670), (4086, 5355), (4590, 4767)]