21840318

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{19891}}^1$

素因数の和:19960

約数の個数: 24

約数和(自身を含む): 48098856

約数和(自身を除く): 26258538

約数列:

[1, 2, 3, 6, 9, 18, 61, 122, 183, 366, 549, 1098, 19891, 39782, 59673, 119346, 179019, 358038, 1213351, 2426702, 3640053, 7280106, 10920159, 21840318]

約数ペア:

[(1, 21840318), (2, 10920159), (3, 7280106), (6, 3640053), (9, 2426702), (18, 1213351), (61, 358038), (122, 179019), (183, 119346), (366, 59673), (549, 39782), (1098, 19891)]