81671859

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 131414400

約数和(自身を除く): 49742541

約数列:

[1, 3, 9, 17, 29, 51, 79, 87, 153, 233, 237, 261, 493, 699, 711, 1343, 1479, 2097, 2291, 3961, 4029, 4437, 6757, 6873, 11883, 12087, 18407, 20271, 20619, 35649, 38947, 55221, 60813, 114869, 116841, 165663, 312919, 344607, 350523, 533803, 938757, 1033821, 1601409, 2816271, 4804227, 9074651, 27223953, 81671859]

約数ペア:

[(1, 81671859), (3, 27223953), (9, 9074651), (17, 4804227), (29, 2816271), (51, 1601409), (79, 1033821), (87, 938757), (153, 533803), (233, 350523), (237, 344607), (261, 312919), (493, 165663), (699, 116841), (711, 114869), (1343, 60813), (1479, 55221), (2097, 38947), (2291, 35649), (3961, 20619), (4029, 20271), (4437, 18407), (6757, 12087), (6873, 11883)]