21563650

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1103}}^1$

素因数の和:1155

約数の個数: 48

約数和(自身を含む): 44354304

約数和(自身を除く): 22790654

約数列:

[1, 2, 5, 10, 17, 23, 25, 34, 46, 50, 85, 115, 170, 230, 391, 425, 575, 782, 850, 1103, 1150, 1955, 2206, 3910, 5515, 9775, 11030, 18751, 19550, 25369, 27575, 37502, 50738, 55150, 93755, 126845, 187510, 253690, 431273, 468775, 634225, 862546, 937550, 1268450, 2156365, 4312730, 10781825, 21563650]

約数ペア:

[(1, 21563650), (2, 10781825), (5, 4312730), (10, 2156365), (17, 1268450), (23, 937550), (25, 862546), (34, 634225), (46, 468775), (50, 431273), (85, 253690), (115, 187510), (170, 126845), (230, 93755), (391, 55150), (425, 50738), (575, 37502), (782, 27575), (850, 25369), (1103, 19550), (1150, 18751), (1955, 11030), (2206, 9775), (3910, 5515)]