21501636

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{137831}}^1$

素因数の和:137851

約数の個数: 24

約数和(自身を含む): 54030144

約数和(自身を除く): 32528508

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 137831, 275662, 413493, 551324, 826986, 1653972, 1791803, 3583606, 5375409, 7167212, 10750818, 21501636]

約数ペア:

[(1, 21501636), (2, 10750818), (3, 7167212), (4, 5375409), (6, 3583606), (12, 1791803), (13, 1653972), (26, 826986), (39, 551324), (52, 413493), (78, 275662), (156, 137831)]