308178507

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{631}}^1\times {\mathrm{1789}}^1$

素因数の和:2443

約数の個数: 32

約数和(自身を含む): 506813440

約数和(自身を除く): 198634933

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 631, 1789, 1893, 4417, 5367, 8203, 12523, 13251, 23257, 24609, 37569, 57421, 69771, 162799, 172263, 488397, 1128859, 3386577, 7902013, 14675167, 23706039, 44025501, 102726169, 308178507]

約数ペア:

[(1, 308178507), (3, 102726169), (7, 44025501), (13, 23706039), (21, 14675167), (39, 7902013), (91, 3386577), (273, 1128859), (631, 488397), (1789, 172263), (1893, 162799), (4417, 69771), (5367, 57421), (8203, 37569), (12523, 24609), (13251, 23257)]