19327959

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 34228480

約数和(自身を除く): 14900521

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 67, 133, 171, 201, 241, 399, 469, 603, 723, 1197, 1273, 1407, 1687, 2169, 3819, 4221, 4579, 5061, 8911, 11457, 13737, 15183, 16147, 26733, 32053, 41211, 48441, 80199, 96159, 113029, 145323, 288477, 306793, 339087, 920379, 1017261, 2147551, 2761137, 6442653, 19327959]

約数ペア:

[(1, 19327959), (3, 6442653), (7, 2761137), (9, 2147551), (19, 1017261), (21, 920379), (57, 339087), (63, 306793), (67, 288477), (133, 145323), (171, 113029), (201, 96159), (241, 80199), (399, 48441), (469, 41211), (603, 32053), (723, 26733), (1197, 16147), (1273, 15183), (1407, 13737), (1687, 11457), (2169, 8911), (3819, 5061), (4221, 4579)]