18137945

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 26142720

約数和(自身を除く): 8004775

約数列:

[1, 5, 7, 31, 35, 73, 155, 217, 229, 365, 511, 1085, 1145, 1603, 2263, 2555, 7099, 8015, 11315, 15841, 16717, 35495, 49693, 79205, 83585, 117019, 248465, 518227, 585095, 2591135, 3627589, 18137945]

約数ペア:

[(1, 18137945), (5, 3627589), (7, 2591135), (31, 585095), (35, 518227), (73, 248465), (155, 117019), (217, 83585), (229, 79205), (365, 49693), (511, 35495), (1085, 16717), (1145, 15841), (1603, 11315), (2263, 8015), (2555, 7099)]