21087222

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{661}}^1$

素因数の和:1088

約数の個数: 32

約数和(自身を含む): 45598560

約数和(自身を除く): 24511338

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 409, 661, 818, 1227, 1322, 1983, 2454, 3966, 5317, 8593, 10634, 15951, 17186, 25779, 31902, 51558, 270349, 540698, 811047, 1622094, 3514537, 7029074, 10543611, 21087222]

約数ペア:

[(1, 21087222), (2, 10543611), (3, 7029074), (6, 3514537), (13, 1622094), (26, 811047), (39, 540698), (78, 270349), (409, 51558), (661, 31902), (818, 25779), (1227, 17186), (1322, 15951), (1983, 10634), (2454, 8593), (3966, 5317)]