20561544

素因数分解:

$2^3\times 3^2\times {\mathrm{353}}^1\times {\mathrm{809}}^1$

素因数の和:1174

約数の個数: 48

約数和(自身を含む): 55914300

約数和(自身を除く): 35352756

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 353, 706, 809, 1059, 1412, 1618, 2118, 2427, 2824, 3177, 3236, 4236, 4854, 6354, 6472, 7281, 8472, 9708, 12708, 14562, 19416, 25416, 29124, 58248, 285577, 571154, 856731, 1142308, 1713462, 2284616, 2570193, 3426924, 5140386, 6853848, 10280772, 20561544]

約数ペア:

[(1, 20561544), (2, 10280772), (3, 6853848), (4, 5140386), (6, 3426924), (8, 2570193), (9, 2284616), (12, 1713462), (18, 1142308), (24, 856731), (36, 571154), (72, 285577), (353, 58248), (706, 29124), (809, 25416), (1059, 19416), (1412, 14562), (1618, 12708), (2118, 9708), (2427, 8472), (2824, 7281), (3177, 6472), (3236, 6354), (4236, 4854)]