1640887899

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{22721}}^1$

素因数の和:22931

約数の個数: 32

約数和(自身を含む): 2646658560

約数和(自身を除く): 1005770661

約数列:

[1, 3, 7, 19, 21, 57, 133, 181, 399, 543, 1267, 3439, 3801, 10317, 22721, 24073, 68163, 72219, 159047, 431699, 477141, 1295097, 3021893, 4112501, 9065679, 12337503, 28787507, 78137519, 86362521, 234412557, 546962633, 1640887899]

約数ペア:

[(1, 1640887899), (3, 546962633), (7, 234412557), (19, 86362521), (21, 78137519), (57, 28787507), (133, 12337503), (181, 9065679), (399, 4112501), (543, 3021893), (1267, 1295097), (3439, 477141), (3801, 431699), (10317, 159047), (22721, 72219), (24073, 68163)]