20878788

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{14621}}^1$

素因数の和:14652

約数の個数: 48

約数和(自身を含む): 58955904

約数和(自身を除く): 38077116

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 68, 84, 102, 119, 204, 238, 357, 476, 714, 1428, 14621, 29242, 43863, 58484, 87726, 102347, 175452, 204694, 248557, 307041, 409388, 497114, 614082, 745671, 994228, 1228164, 1491342, 1739899, 2982684, 3479798, 5219697, 6959596, 10439394, 20878788]

約数ペア:

[(1, 20878788), (2, 10439394), (3, 6959596), (4, 5219697), (6, 3479798), (7, 2982684), (12, 1739899), (14, 1491342), (17, 1228164), (21, 994228), (28, 745671), (34, 614082), (42, 497114), (51, 409388), (68, 307041), (84, 248557), (102, 204694), (119, 175452), (204, 102347), (238, 87726), (357, 58484), (476, 43863), (714, 29242), (1428, 14621)]