21240954

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{18731}}^1$

素因数の和:18752

約数の個数: 40

約数和(自身を含む): 54397728

約数和(自身を除く): 33156774

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 18731, 37462, 56193, 112386, 131117, 168579, 262234, 337158, 393351, 505737, 786702, 1011474, 1180053, 1517211, 2360106, 3034422, 3540159, 7080318, 10620477, 21240954]

約数ペア:

[(1, 21240954), (2, 10620477), (3, 7080318), (6, 3540159), (7, 3034422), (9, 2360106), (14, 1517211), (18, 1180053), (21, 1011474), (27, 786702), (42, 505737), (54, 393351), (63, 337158), (81, 262234), (126, 168579), (162, 131117), (189, 112386), (378, 56193), (567, 37462), (1134, 18731)]