21137036

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{557}}^1$

素因数の和:793

約数の個数: 24

約数和(自身を含む): 37966320

約数和(自身を除く): 16829284

約数列:

[1, 2, 4, 53, 106, 179, 212, 358, 557, 716, 1114, 2228, 9487, 18974, 29521, 37948, 59042, 99703, 118084, 199406, 398812, 5284259, 10568518, 21137036]

約数ペア:

[(1, 21137036), (2, 10568518), (4, 5284259), (53, 398812), (106, 199406), (179, 118084), (212, 99703), (358, 59042), (557, 37948), (716, 29521), (1114, 18974), (2228, 9487)]