21358224

素因数分解:

$2^4\times 3^2\times {\mathrm{83}}^1\times {\mathrm{1787}}^1$

素因数の和:1884

約数の個数: 60

約数和(自身を含む): 60527376

約数和(自身を除く): 39169152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 83, 144, 166, 249, 332, 498, 664, 747, 996, 1328, 1494, 1787, 1992, 2988, 3574, 3984, 5361, 5976, 7148, 10722, 11952, 14296, 16083, 21444, 28592, 32166, 42888, 64332, 85776, 128664, 148321, 257328, 296642, 444963, 593284, 889926, 1186568, 1334889, 1779852, 2373136, 2669778, 3559704, 5339556, 7119408, 10679112, 21358224]

約数ペア:

[(1, 21358224), (2, 10679112), (3, 7119408), (4, 5339556), (6, 3559704), (8, 2669778), (9, 2373136), (12, 1779852), (16, 1334889), (18, 1186568), (24, 889926), (36, 593284), (48, 444963), (72, 296642), (83, 257328), (144, 148321), (166, 128664), (249, 85776), (332, 64332), (498, 42888), (664, 32166), (747, 28592), (996, 21444), (1328, 16083), (1494, 14296), (1787, 11952), (1992, 10722), (2988, 7148), (3574, 5976), (3984, 5361)]