21560488

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{2687}}^1$

素因数の和:2769

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 21985112

約数列:

[1, 2, 4, 8, 17, 34, 59, 68, 118, 136, 236, 472, 1003, 2006, 2687, 4012, 5374, 8024, 10748, 21496, 45679, 91358, 158533, 182716, 317066, 365432, 634132, 1268264, 2695061, 5390122, 10780244, 21560488]

約数ペア:

[(1, 21560488), (2, 10780244), (4, 5390122), (8, 2695061), (17, 1268264), (34, 634132), (59, 365432), (68, 317066), (118, 182716), (136, 158533), (236, 91358), (472, 45679), (1003, 21496), (2006, 10748), (2687, 8024), (4012, 5374)]