21226590

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1021}}^1$

素因数の和:1055

約数の個数: 128

約数和(自身を含む): 70640640

約数和(自身を除く): 49414050

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 27, 30, 33, 35, 42, 45, 54, 55, 63, 66, 70, 77, 90, 99, 105, 110, 126, 135, 154, 165, 189, 198, 210, 231, 270, 297, 315, 330, 378, 385, 462, 495, 594, 630, 693, 770, 945, 990, 1021, 1155, 1386, 1485, 1890, 2042, 2079, 2310, 2970, 3063, 3465, 4158, 5105, 6126, 6930, 7147, 9189, 10210, 10395, 11231, 14294, 15315, 18378, 20790, 21441, 22462, 27567, 30630, 33693, 35735, 42882, 45945, 55134, 56155, 64323, 67386, 71470, 78617, 91890, 101079, 107205, 112310, 128646, 137835, 157234, 168465, 192969, 202158, 214410, 235851, 275670, 303237, 321615, 336930, 385938, 393085, 471702, 505395, 606474, 643230, 707553, 786170, 964845, 1010790, 1179255, 1415106, 1516185, 1929690, 2122659, 2358510, 3032370, 3537765, 4245318, 7075530, 10613295, 21226590]

約数ペア:

[(1, 21226590), (2, 10613295), (3, 7075530), (5, 4245318), (6, 3537765), (7, 3032370), (9, 2358510), (10, 2122659), (11, 1929690), (14, 1516185), (15, 1415106), (18, 1179255), (21, 1010790), (22, 964845), (27, 786170), (30, 707553), (33, 643230), (35, 606474), (42, 505395), (45, 471702), (54, 393085), (55, 385938), (63, 336930), (66, 321615), (70, 303237), (77, 275670), (90, 235851), (99, 214410), (105, 202158), (110, 192969), (126, 168465), (135, 157234), (154, 137835), (165, 128646), (189, 112310), (198, 107205), (210, 101079), (231, 91890), (270, 78617), (297, 71470), (315, 67386), (330, 64323), (378, 56155), (385, 55134), (462, 45945), (495, 42882), (594, 35735), (630, 33693), (693, 30630), (770, 27567), (945, 22462), (990, 21441), (1021, 20790), (1155, 18378), (1386, 15315), (1485, 14294), (1890, 11231), (2042, 10395), (2079, 10210), (2310, 9189), (2970, 7147), (3063, 6930), (3465, 6126), (4158, 5105)]