21131204

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{229}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 41731200

約数和(自身を除く): 20599996

約数列:

[1, 2, 4, 17, 23, 34, 46, 59, 68, 92, 118, 229, 236, 391, 458, 782, 916, 1003, 1357, 1564, 2006, 2714, 3893, 4012, 5267, 5428, 7786, 10534, 13511, 15572, 21068, 23069, 27022, 46138, 54044, 89539, 92276, 179078, 229687, 310753, 358156, 459374, 621506, 918748, 1243012, 5282801, 10565602, 21131204]

約数ペア:

[(1, 21131204), (2, 10565602), (4, 5282801), (17, 1243012), (23, 918748), (34, 621506), (46, 459374), (59, 358156), (68, 310753), (92, 229687), (118, 179078), (229, 92276), (236, 89539), (391, 54044), (458, 46138), (782, 27022), (916, 23069), (1003, 21068), (1357, 15572), (1564, 13511), (2006, 10534), (2714, 7786), (3893, 5428), (4012, 5267)]