261367249

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 333353664

約数和(自身を除く): 71986415

約数列:

[1, 11, 13, 19, 61, 83, 143, 209, 247, 361, 671, 793, 913, 1079, 1159, 1577, 2717, 3971, 4693, 5063, 8723, 11869, 12749, 15067, 17347, 20501, 22021, 29963, 51623, 55693, 65819, 96197, 165737, 225511, 242231, 286273, 329593, 389519, 724009, 1058167, 1250561, 1827743, 3149003, 4284709, 13756171, 20105173, 23760659, 261367249]

約数ペア:

[(1, 261367249), (11, 23760659), (13, 20105173), (19, 13756171), (61, 4284709), (83, 3149003), (143, 1827743), (209, 1250561), (247, 1058167), (361, 724009), (671, 389519), (793, 329593), (913, 286273), (1079, 242231), (1159, 225511), (1577, 165737), (2717, 96197), (3971, 65819), (4693, 55693), (5063, 51623), (8723, 29963), (11869, 22021), (12749, 20501), (15067, 17347)]