20921850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{2447}}^1$

素因数の和:2484

約数の個数: 72

約数和(自身を含む): 59192640

約数和(自身を除く): 38270790

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 25, 30, 38, 45, 50, 57, 75, 90, 95, 114, 150, 171, 190, 225, 285, 342, 450, 475, 570, 855, 950, 1425, 1710, 2447, 2850, 4275, 4894, 7341, 8550, 12235, 14682, 22023, 24470, 36705, 44046, 46493, 61175, 73410, 92986, 110115, 122350, 139479, 183525, 220230, 232465, 278958, 367050, 418437, 464930, 550575, 697395, 836874, 1101150, 1162325, 1394790, 2092185, 2324650, 3486975, 4184370, 6973950, 10460925, 20921850]

約数ペア:

[(1, 20921850), (2, 10460925), (3, 6973950), (5, 4184370), (6, 3486975), (9, 2324650), (10, 2092185), (15, 1394790), (18, 1162325), (19, 1101150), (25, 836874), (30, 697395), (38, 550575), (45, 464930), (50, 418437), (57, 367050), (75, 278958), (90, 232465), (95, 220230), (114, 183525), (150, 139479), (171, 122350), (190, 110115), (225, 92986), (285, 73410), (342, 61175), (450, 46493), (475, 44046), (570, 36705), (855, 24470), (950, 22023), (1425, 14682), (1710, 12235), (2447, 8550), (2850, 7341), (4275, 4894)]