19969235

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{2539}}^1$

素因数の和:2579

約数の個数: 24

約数和(自身を含む): 28376880

約数和(自身を除く): 8407645

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 605, 715, 1573, 2539, 7865, 12695, 27929, 33007, 139645, 165035, 307219, 363077, 1536095, 1815385, 3993847, 19969235]

約数ペア:

[(1, 19969235), (5, 3993847), (11, 1815385), (13, 1536095), (55, 363077), (65, 307219), (121, 165035), (143, 139645), (605, 33007), (715, 27929), (1573, 12695), (2539, 7865)]