21275500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{2503}}^1$

素因数の和:2539

約数の個数: 48

約数和(自身を含む): 49218624

約数和(自身を除く): 27943124

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 170, 250, 340, 425, 500, 850, 1700, 2125, 2503, 4250, 5006, 8500, 10012, 12515, 25030, 42551, 50060, 62575, 85102, 125150, 170204, 212755, 250300, 312875, 425510, 625750, 851020, 1063775, 1251500, 2127550, 4255100, 5318875, 10637750, 21275500]

約数ペア:

[(1, 21275500), (2, 10637750), (4, 5318875), (5, 4255100), (10, 2127550), (17, 1251500), (20, 1063775), (25, 851020), (34, 625750), (50, 425510), (68, 312875), (85, 250300), (100, 212755), (125, 170204), (170, 125150), (250, 85102), (340, 62575), (425, 50060), (500, 42551), (850, 25030), (1700, 12515), (2125, 10012), (2503, 8500), (4250, 5006)]