20787832

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1459}}^1$

素因数の和:1615

約数の個数: 32

約数和(自身を含む): 42310800

約数和(自身を除く): 21522968

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 137, 274, 548, 1096, 1459, 1781, 2918, 3562, 5836, 7124, 11672, 14248, 18967, 37934, 75868, 151736, 199883, 399766, 799532, 1599064, 2598479, 5196958, 10393916, 20787832]

約数ペア:

[(1, 20787832), (2, 10393916), (4, 5196958), (8, 2598479), (13, 1599064), (26, 799532), (52, 399766), (104, 199883), (137, 151736), (274, 75868), (548, 37934), (1096, 18967), (1459, 14248), (1781, 11672), (2918, 7124), (3562, 5836)]