253676913

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1\times {\mathrm{1997}}^1$

素因数の和:2293

約数の個数: 32

約数和(自身を含む): 405098496

約数和(自身を除く): 151421583

約数列:

[1, 3, 7, 21, 23, 69, 161, 263, 483, 789, 1841, 1997, 5523, 5991, 6049, 13979, 18147, 41937, 42343, 45931, 127029, 137793, 321517, 525211, 964551, 1575633, 3676477, 11029431, 12079853, 36239559, 84558971, 253676913]

約数ペア:

[(1, 253676913), (3, 84558971), (7, 36239559), (21, 12079853), (23, 11029431), (69, 3676477), (161, 1575633), (263, 964551), (483, 525211), (789, 321517), (1841, 137793), (1997, 127029), (5523, 45931), (5991, 42343), (6049, 41937), (13979, 18147)]