21896888

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{677}}^1$

素因数の和:1007

約数の個数: 32

約数和(自身を含む): 44422560

約数和(自身を除く): 22525672

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 311, 622, 677, 1244, 1354, 2488, 2708, 4043, 5416, 8086, 8801, 16172, 17602, 32344, 35204, 70408, 210547, 421094, 842188, 1684376, 2737111, 5474222, 10948444, 21896888]

約数ペア:

[(1, 21896888), (2, 10948444), (4, 5474222), (8, 2737111), (13, 1684376), (26, 842188), (52, 421094), (104, 210547), (311, 70408), (622, 35204), (677, 32344), (1244, 17602), (1354, 16172), (2488, 8801), (2708, 8086), (4043, 5416)]