21765484

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{4703}}^1$

素因数の和:4809

約数の個数: 24

約数和(自身を含む): 41489280

約数和(自身を除く): 19723796

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 1157, 2314, 4628, 4703, 9406, 18812, 61139, 122278, 244556, 418567, 837134, 1674268, 5441371, 10882742, 21765484]

約数ペア:

[(1, 21765484), (2, 10882742), (4, 5441371), (13, 1674268), (26, 837134), (52, 418567), (89, 244556), (178, 122278), (356, 61139), (1157, 18812), (2314, 9406), (4628, 4703)]