18870705

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1051}}^1$

素因数の和:1091

約数の個数: 64

約数和(自身を含む): 40396800

約数和(自身を除く): 21526095

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 45, 57, 63, 95, 105, 133, 135, 171, 189, 285, 315, 399, 513, 665, 855, 945, 1051, 1197, 1995, 2565, 3153, 3591, 5255, 5985, 7357, 9459, 15765, 17955, 19969, 22071, 28377, 36785, 47295, 59907, 66213, 99845, 110355, 139783, 141885, 179721, 198639, 299535, 331065, 419349, 539163, 698915, 898605, 993195, 1258047, 2096745, 2695815, 3774141, 6290235, 18870705]

約数ペア:

[(1, 18870705), (3, 6290235), (5, 3774141), (7, 2695815), (9, 2096745), (15, 1258047), (19, 993195), (21, 898605), (27, 698915), (35, 539163), (45, 419349), (57, 331065), (63, 299535), (95, 198639), (105, 179721), (133, 141885), (135, 139783), (171, 110355), (189, 99845), (285, 66213), (315, 59907), (399, 47295), (513, 36785), (665, 28377), (855, 22071), (945, 19969), (1051, 17955), (1197, 15765), (1995, 9459), (2565, 7357), (3153, 5985), (3591, 5255)]