19131898

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:310

約数の個数: 32

約数和(自身を含む): 31680000

約数和(自身を除く): 12548102

約数列:

[1, 2, 19, 31, 38, 62, 109, 149, 218, 298, 589, 1178, 2071, 2831, 3379, 4142, 4619, 5662, 6758, 9238, 16241, 32482, 64201, 87761, 128402, 175522, 308579, 503471, 617158, 1006942, 9565949, 19131898]

約数ペア:

[(1, 19131898), (2, 9565949), (19, 1006942), (31, 617158), (38, 503471), (62, 308579), (109, 175522), (149, 128402), (218, 87761), (298, 64201), (589, 32482), (1178, 16241), (2071, 9238), (2831, 6758), (3379, 5662), (4142, 4619)]