31908021

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 45957120

約数和(自身を除く): 14049099

約数列:

[1, 3, 31, 43, 79, 93, 101, 129, 237, 303, 1333, 2449, 3131, 3397, 3999, 4343, 7347, 7979, 9393, 10191, 13029, 23937, 105307, 134633, 247349, 315921, 343097, 403899, 742047, 1029291, 10636007, 31908021]

約数ペア:

[(1, 31908021), (3, 10636007), (31, 1029291), (43, 742047), (79, 403899), (93, 343097), (101, 315921), (129, 247349), (237, 134633), (303, 105307), (1333, 23937), (2449, 13029), (3131, 10191), (3397, 9393), (3999, 7979), (4343, 7347)]