1720341999

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{643}}^1$

素因数の和:852

約数の個数: 48

約数和(自身を含む): 2604026880

約数和(自身を除く): 883684881

約数列:

[1, 3, 9, 53, 71, 79, 159, 213, 237, 477, 639, 643, 711, 1929, 3763, 4187, 5609, 5787, 11289, 12561, 16827, 33867, 34079, 37683, 45653, 50481, 50797, 102237, 136959, 152391, 297277, 306711, 410877, 457173, 891831, 2419609, 2675493, 2692241, 3606587, 7258827, 8076723, 10819761, 21776481, 24230169, 32459283, 191149111, 573447333, 1720341999]

約数ペア:

[(1, 1720341999), (3, 573447333), (9, 191149111), (53, 32459283), (71, 24230169), (79, 21776481), (159, 10819761), (213, 8076723), (237, 7258827), (477, 3606587), (639, 2692241), (643, 2675493), (711, 2419609), (1929, 891831), (3763, 457173), (4187, 410877), (5609, 306711), (5787, 297277), (11289, 152391), (12561, 136959), (16827, 102237), (33867, 50797), (34079, 50481), (37683, 45653)]