64391873

素因数分解:

$7^1\times {\mathrm{13}}^3\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:178

約数の個数: 32

約数和(自身を含む): 82252800

約数和(自身を除く): 17860927

約数列:

[1, 7, 13, 53, 79, 91, 169, 371, 553, 689, 1027, 1183, 2197, 4187, 4823, 7189, 8957, 13351, 15379, 29309, 54431, 62699, 93457, 116441, 173563, 381017, 707603, 815087, 1214941, 4953221, 9198839, 64391873]

約数ペア:

[(1, 64391873), (7, 9198839), (13, 4953221), (53, 1214941), (79, 815087), (91, 707603), (169, 381017), (371, 173563), (553, 116441), (689, 93457), (1027, 62699), (1183, 54431), (2197, 29309), (4187, 15379), (4823, 13351), (7189, 8957)]