21195868

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 41328000

約数和(自身を除く): 20132132

約数列:

[1, 2, 4, 19, 29, 38, 58, 59, 76, 116, 118, 163, 236, 326, 551, 652, 1102, 1121, 1711, 2204, 2242, 3097, 3422, 4484, 4727, 6194, 6844, 9454, 9617, 12388, 18908, 19234, 32509, 38468, 65018, 89813, 130036, 179626, 182723, 278893, 359252, 365446, 557786, 730892, 1115572, 5298967, 10597934, 21195868]

約数ペア:

[(1, 21195868), (2, 10597934), (4, 5298967), (19, 1115572), (29, 730892), (38, 557786), (58, 365446), (59, 359252), (76, 278893), (116, 182723), (118, 179626), (163, 130036), (236, 89813), (326, 65018), (551, 38468), (652, 32509), (1102, 19234), (1121, 18908), (1711, 12388), (2204, 9617), (2242, 9454), (3097, 6844), (3422, 6194), (4484, 4727)]