21233238

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:341

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 28118442

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 67, 78, 102, 134, 201, 221, 239, 402, 442, 478, 663, 717, 871, 1139, 1326, 1434, 1742, 2278, 2613, 3107, 3417, 4063, 5226, 6214, 6834, 8126, 9321, 12189, 14807, 16013, 18642, 24378, 29614, 32026, 44421, 48039, 52819, 88842, 96078, 105638, 158457, 208169, 272221, 316914, 416338, 544442, 624507, 816663, 1249014, 1633326, 3538873, 7077746, 10616619, 21233238]

約数ペア:

[(1, 21233238), (2, 10616619), (3, 7077746), (6, 3538873), (13, 1633326), (17, 1249014), (26, 816663), (34, 624507), (39, 544442), (51, 416338), (67, 316914), (78, 272221), (102, 208169), (134, 158457), (201, 105638), (221, 96078), (239, 88842), (402, 52819), (442, 48039), (478, 44421), (663, 32026), (717, 29614), (871, 24378), (1139, 18642), (1326, 16013), (1434, 14807), (1742, 12189), (2278, 9321), (2613, 8126), (3107, 6834), (3417, 6214), (4063, 5226)]