31201866

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:407

約数の個数: 48

約数和(自身を含む): 69532008

約数和(自身を除く): 38330142

約数列:

[1, 2, 3, 6, 9, 18, 61, 122, 157, 181, 183, 314, 362, 366, 471, 543, 549, 942, 1086, 1098, 1413, 1629, 2826, 3258, 9577, 11041, 19154, 22082, 28417, 28731, 33123, 56834, 57462, 66246, 85251, 86193, 99369, 170502, 172386, 198738, 255753, 511506, 1733437, 3466874, 5200311, 10400622, 15600933, 31201866]

約数ペア:

[(1, 31201866), (2, 15600933), (3, 10400622), (6, 5200311), (9, 3466874), (18, 1733437), (61, 511506), (122, 255753), (157, 198738), (181, 172386), (183, 170502), (314, 99369), (362, 86193), (366, 85251), (471, 66246), (543, 57462), (549, 56834), (942, 33123), (1086, 28731), (1098, 28417), (1413, 22082), (1629, 19154), (2826, 11041), (3258, 9577)]