21111688

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11941}}^1$

素因数の和:11977

約数の個数: 32

約数和(自身を含む): 45140760

約数和(自身を除く): 24029072

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 11941, 23882, 47764, 95528, 155233, 202997, 310466, 405994, 620932, 811988, 1241864, 1623976, 2638961, 5277922, 10555844, 21111688]

約数ペア:

[(1, 21111688), (2, 10555844), (4, 5277922), (8, 2638961), (13, 1623976), (17, 1241864), (26, 811988), (34, 620932), (52, 405994), (68, 310466), (104, 202997), (136, 155233), (221, 95528), (442, 47764), (884, 23882), (1768, 11941)]