21530750

素因数分解:

$2^1\times 5^3\times {\mathrm{71}}^1\times {\mathrm{1213}}^1$

素因数の和:1301

約数の個数: 32

約数和(自身を含む): 40906944

約数和(自身を除く): 19376194

約数列:

[1, 2, 5, 10, 25, 50, 71, 125, 142, 250, 355, 710, 1213, 1775, 2426, 3550, 6065, 8875, 12130, 17750, 30325, 60650, 86123, 151625, 172246, 303250, 430615, 861230, 2153075, 4306150, 10765375, 21530750]

約数ペア:

[(1, 21530750), (2, 10765375), (5, 4306150), (10, 2153075), (25, 861230), (50, 430615), (71, 303250), (125, 172246), (142, 151625), (250, 86123), (355, 60650), (710, 30325), (1213, 17750), (1775, 12130), (2426, 8875), (3550, 6065)]