21891618

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{173743}}^1$

素因数の和:173758

約数の個数: 24

約数和(自身を含む): 54208128

約数和(自身を除く): 32316510

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 173743, 347486, 521229, 1042458, 1216201, 1563687, 2432402, 3127374, 3648603, 7297206, 10945809, 21891618]

約数ペア:

[(1, 21891618), (2, 10945809), (3, 7297206), (6, 3648603), (7, 3127374), (9, 2432402), (14, 1563687), (18, 1216201), (21, 1042458), (42, 521229), (63, 347486), (126, 173743)]