21984612

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2659}}^1$

素因数の和:2732

約数の個数: 48

約数和(自身を含む): 56306880

約数和(自身を除く): 34322268

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 106, 156, 159, 212, 318, 636, 689, 1378, 2067, 2659, 2756, 4134, 5318, 7977, 8268, 10636, 15954, 31908, 34567, 69134, 103701, 138268, 140927, 207402, 281854, 414804, 422781, 563708, 845562, 1691124, 1832051, 3664102, 5496153, 7328204, 10992306, 21984612]

約数ペア:

[(1, 21984612), (2, 10992306), (3, 7328204), (4, 5496153), (6, 3664102), (12, 1832051), (13, 1691124), (26, 845562), (39, 563708), (52, 422781), (53, 414804), (78, 281854), (106, 207402), (156, 140927), (159, 138268), (212, 103701), (318, 69134), (636, 34567), (689, 31908), (1378, 15954), (2067, 10636), (2659, 8268), (2756, 7977), (4134, 5318)]