1257843909

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{571}}^1\times {\mathrm{5521}}^1$

素因数の和:6121

約数の個数: 32

約数和(自身を含む): 2021493760

約数和(自身を除く): 763649851

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 571, 1713, 3997, 5521, 10849, 11991, 16563, 32547, 38647, 75943, 104899, 115941, 227829, 314697, 734293, 2202879, 3152491, 9457473, 22067437, 59897329, 66202311, 179691987, 419281303, 1257843909]

約数ペア:

[(1, 1257843909), (3, 419281303), (7, 179691987), (19, 66202311), (21, 59897329), (57, 22067437), (133, 9457473), (399, 3152491), (571, 2202879), (1713, 734293), (3997, 314697), (5521, 227829), (10849, 115941), (11991, 104899), (16563, 75943), (32547, 38647)]