253557941

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{653}}^1$

素因数の和:941

約数の個数: 32

約数和(自身を含む): 332252928

約数和(自身を除く): 78694987

約数列:

[1, 7, 13, 17, 91, 119, 221, 251, 653, 1547, 1757, 3263, 4267, 4571, 8489, 11101, 22841, 29869, 55471, 59423, 77707, 144313, 163903, 388297, 1010191, 1147321, 2130739, 2786351, 14915173, 19504457, 36222563, 253557941]

約数ペア:

[(1, 253557941), (7, 36222563), (13, 19504457), (17, 14915173), (91, 2786351), (119, 2130739), (221, 1147321), (251, 1010191), (653, 388297), (1547, 163903), (1757, 144313), (3263, 77707), (4267, 59423), (4571, 55471), (8489, 29869), (11101, 22841)]