21163772

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{557}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 23833348

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 59, 92, 118, 161, 236, 322, 413, 557, 644, 826, 1114, 1357, 1652, 2228, 2714, 3899, 5428, 7798, 9499, 12811, 15596, 18998, 25622, 32863, 37996, 51244, 65726, 89677, 131452, 179354, 230041, 358708, 460082, 755849, 920164, 1511698, 3023396, 5290943, 10581886, 21163772]

約数ペア:

[(1, 21163772), (2, 10581886), (4, 5290943), (7, 3023396), (14, 1511698), (23, 920164), (28, 755849), (46, 460082), (59, 358708), (92, 230041), (118, 179354), (161, 131452), (236, 89677), (322, 65726), (413, 51244), (557, 37996), (644, 32863), (826, 25622), (1114, 18998), (1357, 15596), (1652, 12811), (2228, 9499), (2714, 7798), (3899, 5428)]