213366955

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 271941120

約数和(自身を除く): 58574165

約数列:

[1, 5, 31, 73, 109, 155, 173, 365, 545, 865, 2263, 3379, 5363, 7957, 11315, 12629, 16895, 18857, 26815, 39785, 63145, 94285, 246667, 391499, 584567, 1233335, 1376561, 1957495, 2922835, 6882805, 42673391, 213366955]

約数ペア:

[(1, 213366955), (5, 42673391), (31, 6882805), (73, 2922835), (109, 1957495), (155, 1376561), (173, 1233335), (365, 584567), (545, 391499), (865, 246667), (2263, 94285), (3379, 63145), (5363, 39785), (7957, 26815), (11315, 18857), (12629, 16895)]