18943323

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{241}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 30666240

約数和(自身を除く): 11722917

約数列:

[1, 3, 7, 19, 21, 57, 133, 197, 241, 399, 591, 723, 1379, 1687, 3743, 4137, 4579, 5061, 11229, 13737, 26201, 32053, 47477, 78603, 96159, 142431, 332339, 902063, 997017, 2706189, 6314441, 18943323]

約数ペア:

[(1, 18943323), (3, 6314441), (7, 2706189), (19, 997017), (21, 902063), (57, 332339), (133, 142431), (197, 96159), (241, 78603), (399, 47477), (591, 32053), (723, 26201), (1379, 13737), (1687, 11229), (3743, 5061), (4137, 4579)]