21135036

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2221}}^1$

素因数の和:2302

約数の個数: 48

約数和(自身を含む): 54003488

約数和(自身を除く): 32868452

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 61, 78, 122, 156, 183, 244, 366, 732, 793, 1586, 2221, 2379, 3172, 4442, 4758, 6663, 8884, 9516, 13326, 26652, 28873, 57746, 86619, 115492, 135481, 173238, 270962, 346476, 406443, 541924, 812886, 1625772, 1761253, 3522506, 5283759, 7045012, 10567518, 21135036]

約数ペア:

[(1, 21135036), (2, 10567518), (3, 7045012), (4, 5283759), (6, 3522506), (12, 1761253), (13, 1625772), (26, 812886), (39, 541924), (52, 406443), (61, 346476), (78, 270962), (122, 173238), (156, 135481), (183, 115492), (244, 86619), (366, 57746), (732, 28873), (793, 26652), (1586, 13326), (2221, 9516), (2379, 8884), (3172, 6663), (4442, 4758)]