20970464

素因数分解:

$2^5\times {\mathrm{67}}^1\times {\mathrm{9781}}^1$

素因数の和:9858

約数の個数: 24

約数和(自身を含む): 41906088

約数和(自身を除く): 20935624

約数列:

[1, 2, 4, 8, 16, 32, 67, 134, 268, 536, 1072, 2144, 9781, 19562, 39124, 78248, 156496, 312992, 655327, 1310654, 2621308, 5242616, 10485232, 20970464]

約数ペア:

[(1, 20970464), (2, 10485232), (4, 5242616), (8, 2621308), (16, 1310654), (32, 655327), (67, 312992), (134, 156496), (268, 78248), (536, 39124), (1072, 19562), (2144, 9781)]