16915005

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 31224960

約数和(自身を除く): 14309955

約数列:

[1, 3, 5, 9, 15, 23, 45, 59, 69, 115, 177, 207, 277, 295, 345, 531, 831, 885, 1035, 1357, 1385, 2493, 2655, 4071, 4155, 6371, 6785, 12213, 12465, 16343, 19113, 20355, 31855, 49029, 57339, 61065, 81715, 95565, 147087, 245145, 286695, 375889, 735435, 1127667, 1879445, 3383001, 5638335, 16915005]

約数ペア:

[(1, 16915005), (3, 5638335), (5, 3383001), (9, 1879445), (15, 1127667), (23, 735435), (45, 375889), (59, 286695), (69, 245145), (115, 147087), (177, 95565), (207, 81715), (277, 61065), (295, 57339), (345, 49029), (531, 31855), (831, 20355), (885, 19113), (1035, 16343), (1357, 12465), (1385, 12213), (2493, 6785), (2655, 6371), (4071, 4155)]