81563238

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3359}}^1$

素因数の和:3457

約数の個数: 48

約数和(自身を含む): 188697600

約数和(自身を除く): 107134362

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 71, 114, 142, 171, 213, 342, 426, 639, 1278, 1349, 2698, 3359, 4047, 6718, 8094, 10077, 12141, 20154, 24282, 30231, 60462, 63821, 127642, 191463, 238489, 382926, 476978, 574389, 715467, 1148778, 1430934, 2146401, 4292802, 4531291, 9062582, 13593873, 27187746, 40781619, 81563238]

約数ペア:

[(1, 81563238), (2, 40781619), (3, 27187746), (6, 13593873), (9, 9062582), (18, 4531291), (19, 4292802), (38, 2146401), (57, 1430934), (71, 1148778), (114, 715467), (142, 574389), (171, 476978), (213, 382926), (342, 238489), (426, 191463), (639, 127642), (1278, 63821), (1349, 60462), (2698, 30231), (3359, 24282), (4047, 20154), (6718, 12141), (8094, 10077)]