20747324

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{4483}}^1$

素因数の和:4589

約数の個数: 24

約数和(自身を含む): 39548880

約数和(自身を除く): 18801556

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 1157, 2314, 4483, 4628, 8966, 17932, 58279, 116558, 233116, 398987, 797974, 1595948, 5186831, 10373662, 20747324]

約数ペア:

[(1, 20747324), (2, 10373662), (4, 5186831), (13, 1595948), (26, 797974), (52, 398987), (89, 233116), (178, 116558), (356, 58279), (1157, 17932), (2314, 8966), (4483, 4628)]