161755551

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 251130880

約数和(自身を除く): 89375329

約数列:

[1, 3, 9, 31, 43, 93, 97, 129, 139, 279, 291, 387, 417, 873, 1251, 1333, 3007, 3999, 4171, 4309, 5977, 9021, 11997, 12513, 12927, 13483, 17931, 27063, 37539, 38781, 40449, 53793, 121347, 129301, 185287, 387903, 417973, 555861, 579769, 1163709, 1253919, 1667583, 1739307, 3761757, 5217921, 17972839, 53918517, 161755551]

約数ペア:

[(1, 161755551), (3, 53918517), (9, 17972839), (31, 5217921), (43, 3761757), (93, 1739307), (97, 1667583), (129, 1253919), (139, 1163709), (279, 579769), (291, 555861), (387, 417973), (417, 387903), (873, 185287), (1251, 129301), (1333, 121347), (3007, 53793), (3999, 40449), (4171, 38781), (4309, 37539), (5977, 27063), (9021, 17931), (11997, 13483), (12513, 12927)]