1278459

素因数分解:

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

素因数の和:256

約数の個数: 36

約数和(自身を含む): 2323776

約数和(自身を除く): 1045317

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 223, 273, 441, 637, 669, 819, 1561, 1911, 2007, 2899, 4683, 5733, 8697, 10927, 14049, 20293, 26091, 32781, 60879, 98343, 142051, 182637, 426153, 1278459]

約数ペア:

[(1, 1278459), (3, 426153), (7, 182637), (9, 142051), (13, 98343), (21, 60879), (39, 32781), (49, 26091), (63, 20293), (91, 14049), (117, 10927), (147, 8697), (223, 5733), (273, 4683), (441, 2899), (637, 2007), (669, 1911), (819, 1561)]