21801890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{4217}}^1$

素因数の和:4282

約数の個数: 32

約数和(自身を含む): 43732224

約数和(自身を除く): 21930334

約数列:

[1, 2, 5, 10, 11, 22, 47, 55, 94, 110, 235, 470, 517, 1034, 2585, 4217, 5170, 8434, 21085, 42170, 46387, 92774, 198199, 231935, 396398, 463870, 990995, 1981990, 2180189, 4360378, 10900945, 21801890]

約数ペア:

[(1, 21801890), (2, 10900945), (5, 4360378), (10, 2180189), (11, 1981990), (22, 990995), (47, 463870), (55, 396398), (94, 231935), (110, 198199), (235, 92774), (470, 46387), (517, 42170), (1034, 21085), (2585, 8434), (4217, 5170)]