21031950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{4523}}^1$

素因数の和:4569

約数の個数: 48

約数和(自身を含む): 53853696

約数和(自身を除く): 32821746

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 62, 75, 93, 150, 155, 186, 310, 465, 775, 930, 1550, 2325, 4523, 4650, 9046, 13569, 22615, 27138, 45230, 67845, 113075, 135690, 140213, 226150, 280426, 339225, 420639, 678450, 701065, 841278, 1402130, 2103195, 3505325, 4206390, 7010650, 10515975, 21031950]

約数ペア:

[(1, 21031950), (2, 10515975), (3, 7010650), (5, 4206390), (6, 3505325), (10, 2103195), (15, 1402130), (25, 841278), (30, 701065), (31, 678450), (50, 420639), (62, 339225), (75, 280426), (93, 226150), (150, 140213), (155, 135690), (186, 113075), (310, 67845), (465, 45230), (775, 27138), (930, 22615), (1550, 13569), (2325, 9046), (4523, 4650)]