21158982

素因数分解:

$2^1\times 3^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:244

約数の個数: 96

約数和(自身を含む): 54486432

約数和(自身を除く): 33327450

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 27, 34, 39, 51, 54, 78, 81, 102, 117, 153, 162, 197, 221, 234, 243, 306, 351, 394, 442, 459, 486, 591, 663, 702, 918, 1053, 1182, 1326, 1377, 1773, 1989, 2106, 2561, 2754, 3159, 3349, 3546, 3978, 4131, 5122, 5319, 5967, 6318, 6698, 7683, 8262, 10047, 10638, 11934, 15366, 15957, 17901, 20094, 23049, 30141, 31914, 35802, 43537, 46098, 47871, 53703, 60282, 69147, 87074, 90423, 95742, 107406, 130611, 138294, 180846, 207441, 261222, 271269, 391833, 414882, 542538, 622323, 783666, 813807, 1175499, 1244646, 1627614, 2350998, 3526497, 7052994, 10579491, 21158982]

約数ペア:

[(1, 21158982), (2, 10579491), (3, 7052994), (6, 3526497), (9, 2350998), (13, 1627614), (17, 1244646), (18, 1175499), (26, 813807), (27, 783666), (34, 622323), (39, 542538), (51, 414882), (54, 391833), (78, 271269), (81, 261222), (102, 207441), (117, 180846), (153, 138294), (162, 130611), (197, 107406), (221, 95742), (234, 90423), (243, 87074), (306, 69147), (351, 60282), (394, 53703), (442, 47871), (459, 46098), (486, 43537), (591, 35802), (663, 31914), (702, 30141), (918, 23049), (1053, 20094), (1182, 17901), (1326, 15957), (1377, 15366), (1773, 11934), (1989, 10638), (2106, 10047), (2561, 8262), (2754, 7683), (3159, 6698), (3349, 6318), (3546, 5967), (3978, 5319), (4131, 5122)]