2556918

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{223}}^1$

素因数の和:258

約数の個数: 72

約数和(自身を含む): 6971328

約数和(自身を除く): 4414410

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 49, 63, 78, 91, 98, 117, 126, 147, 182, 223, 234, 273, 294, 441, 446, 546, 637, 669, 819, 882, 1274, 1338, 1561, 1638, 1911, 2007, 2899, 3122, 3822, 4014, 4683, 5733, 5798, 8697, 9366, 10927, 11466, 14049, 17394, 20293, 21854, 26091, 28098, 32781, 40586, 52182, 60879, 65562, 98343, 121758, 142051, 182637, 196686, 284102, 365274, 426153, 852306, 1278459, 2556918]

約数ペア:

[(1, 2556918), (2, 1278459), (3, 852306), (6, 426153), (7, 365274), (9, 284102), (13, 196686), (14, 182637), (18, 142051), (21, 121758), (26, 98343), (39, 65562), (42, 60879), (49, 52182), (63, 40586), (78, 32781), (91, 28098), (98, 26091), (117, 21854), (126, 20293), (147, 17394), (182, 14049), (223, 11466), (234, 10927), (273, 9366), (294, 8697), (441, 5798), (446, 5733), (546, 4683), (637, 4014), (669, 3822), (819, 3122), (882, 2899), (1274, 2007), (1338, 1911), (1561, 1638)]