21768838

素因数分解:

$2^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{2441}}^1$

素因数の和:2477

約数の個数: 32

約数和(自身を含む): 41025600

約数和(自身を除く): 19256762

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 343, 637, 686, 1274, 2441, 4459, 4882, 8918, 17087, 31733, 34174, 63466, 119609, 222131, 239218, 444262, 837263, 1554917, 1674526, 3109834, 10884419, 21768838]

約数ペア:

[(1, 21768838), (2, 10884419), (7, 3109834), (13, 1674526), (14, 1554917), (26, 837263), (49, 444262), (91, 239218), (98, 222131), (182, 119609), (343, 63466), (637, 34174), (686, 31733), (1274, 17087), (2441, 8918), (4459, 4882)]