20639928

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{45263}}^1$

素因数の和:45291

約数の個数: 32

約数和(自身を含む): 54316800

約数和(自身を除く): 33676872

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228, 456, 45263, 90526, 135789, 181052, 271578, 362104, 543156, 859997, 1086312, 1719994, 2579991, 3439988, 5159982, 6879976, 10319964, 20639928]

約数ペア:

[(1, 20639928), (2, 10319964), (3, 6879976), (4, 5159982), (6, 3439988), (8, 2579991), (12, 1719994), (19, 1086312), (24, 859997), (38, 543156), (57, 362104), (76, 271578), (114, 181052), (152, 135789), (228, 90526), (456, 45263)]