18667870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8447}}^1$

素因数の和:8484

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 19652258

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 8447, 16894, 42235, 84470, 109811, 143599, 219622, 287198, 549055, 717995, 1098110, 1435990, 1866787, 3733574, 9333935, 18667870]

約数ペア:

[(1, 18667870), (2, 9333935), (5, 3733574), (10, 1866787), (13, 1435990), (17, 1098110), (26, 717995), (34, 549055), (65, 287198), (85, 219622), (130, 143599), (170, 109811), (221, 84470), (442, 42235), (1105, 16894), (2210, 8447)]