21322100

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{2699}}^1$

素因数の和:2792

約数の個数: 36

約数和(自身を含む): 46872000

約数和(自身を除く): 25549900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 790, 1580, 1975, 2699, 3950, 5398, 7900, 10796, 13495, 26990, 53980, 67475, 134950, 213221, 269900, 426442, 852884, 1066105, 2132210, 4264420, 5330525, 10661050, 21322100]

約数ペア:

[(1, 21322100), (2, 10661050), (4, 5330525), (5, 4264420), (10, 2132210), (20, 1066105), (25, 852884), (50, 426442), (79, 269900), (100, 213221), (158, 134950), (316, 67475), (395, 53980), (790, 26990), (1580, 13495), (1975, 10796), (2699, 7900), (3950, 5398)]