20771764

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{2309}}^1$

素因数の和:2499

約数の個数: 24

約数和(自身を含む): 39390120

約数和(自身を除く): 18618356

約数列:

[1, 2, 4, 13, 26, 52, 173, 346, 692, 2249, 2309, 4498, 4618, 8996, 9236, 30017, 60034, 120068, 399457, 798914, 1597828, 5192941, 10385882, 20771764]

約数ペア:

[(1, 20771764), (2, 10385882), (4, 5192941), (13, 1597828), (26, 798914), (52, 399457), (173, 120068), (346, 60034), (692, 30017), (2249, 9236), (2309, 8996), (4498, 4618)]