420291

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:131

約数の個数: 24

約数和(自身を含む): 668304

約数和(自身を除く): 248013

約数列:

[1, 3, 9, 17, 41, 51, 67, 123, 153, 201, 369, 603, 697, 1139, 2091, 2747, 3417, 6273, 8241, 10251, 24723, 46699, 140097, 420291]

約数ペア:

[(1, 420291), (3, 140097), (9, 46699), (17, 24723), (41, 10251), (51, 8241), (67, 6273), (123, 3417), (153, 2747), (201, 2091), (369, 1139), (603, 697)]