21339984

素因数分解:

$2^4\times 3^1\times {\mathrm{409}}^1\times {\mathrm{1087}}^1$

素因数の和:1507

約数の個数: 40

約数和(自身を含む): 55313920

約数和(自身を除く): 33973936

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 409, 818, 1087, 1227, 1636, 2174, 2454, 3261, 3272, 4348, 4908, 6522, 6544, 8696, 9816, 13044, 17392, 19632, 26088, 52176, 444583, 889166, 1333749, 1778332, 2667498, 3556664, 5334996, 7113328, 10669992, 21339984]

約数ペア:

[(1, 21339984), (2, 10669992), (3, 7113328), (4, 5334996), (6, 3556664), (8, 2667498), (12, 1778332), (16, 1333749), (24, 889166), (48, 444583), (409, 52176), (818, 26088), (1087, 19632), (1227, 17392), (1636, 13044), (2174, 9816), (2454, 8696), (3261, 6544), (3272, 6522), (4348, 4908)]