18738488

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{653}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 37434960

約数和(自身を除く): 18696472

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 211, 422, 653, 844, 1306, 1688, 2612, 3587, 5224, 7174, 11101, 14348, 22202, 28696, 44404, 88808, 137783, 275566, 551132, 1102264, 2342311, 4684622, 9369244, 18738488]

約数ペア:

[(1, 18738488), (2, 9369244), (4, 4684622), (8, 2342311), (17, 1102264), (34, 551132), (68, 275566), (136, 137783), (211, 88808), (422, 44404), (653, 28696), (844, 22202), (1306, 14348), (1688, 11101), (2612, 7174), (3587, 5224)]