21621080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41579}}^1$

素因数の和:41603

約数の個数: 32

約数和(自身を含む): 52390800

約数和(自身を除く): 30769720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41579, 83158, 166316, 207895, 332632, 415790, 540527, 831580, 1081054, 1663160, 2162108, 2702635, 4324216, 5405270, 10810540, 21621080]

約数ペア:

[(1, 21621080), (2, 10810540), (4, 5405270), (5, 4324216), (8, 2702635), (10, 2162108), (13, 1663160), (20, 1081054), (26, 831580), (40, 540527), (52, 415790), (65, 332632), (104, 207895), (130, 166316), (260, 83158), (520, 41579)]