78365217

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{389}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 122653440

約数和(自身を除く): 44288223

約数列:

[1, 3, 7, 21, 53, 159, 181, 371, 389, 543, 1113, 1167, 1267, 2723, 3801, 8169, 9593, 20617, 28779, 61851, 67151, 70409, 144319, 201453, 211227, 432957, 492863, 1478589, 3731677, 11195031, 26121739, 78365217]

約数ペア:

[(1, 78365217), (3, 26121739), (7, 11195031), (21, 3731677), (53, 1478589), (159, 492863), (181, 432957), (371, 211227), (389, 201453), (543, 144319), (1113, 70409), (1167, 67151), (1267, 61851), (2723, 28779), (3801, 20617), (8169, 9593)]