19914741

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:164

約数の個数: 80

約数和(自身を含む): 38658048

約数和(自身を除く): 18743307

約数列:

[1, 3, 7, 9, 11, 21, 27, 31, 33, 63, 77, 81, 93, 99, 103, 189, 217, 231, 279, 297, 309, 341, 567, 651, 693, 721, 837, 891, 927, 1023, 1133, 1953, 2079, 2163, 2387, 2511, 2781, 3069, 3193, 3399, 5859, 6237, 6489, 7161, 7931, 8343, 9207, 9579, 10197, 17577, 19467, 21483, 22351, 23793, 27621, 28737, 30591, 35123, 58401, 64449, 67053, 71379, 86211, 91773, 105369, 193347, 201159, 214137, 245861, 258633, 316107, 603477, 642411, 737583, 948321, 1810431, 2212749, 2844963, 6638247, 19914741]

約数ペア:

[(1, 19914741), (3, 6638247), (7, 2844963), (9, 2212749), (11, 1810431), (21, 948321), (27, 737583), (31, 642411), (33, 603477), (63, 316107), (77, 258633), (81, 245861), (93, 214137), (99, 201159), (103, 193347), (189, 105369), (217, 91773), (231, 86211), (279, 71379), (297, 67053), (309, 64449), (341, 58401), (567, 35123), (651, 30591), (693, 28737), (721, 27621), (837, 23793), (891, 22351), (927, 21483), (1023, 19467), (1133, 17577), (1953, 10197), (2079, 9579), (2163, 9207), (2387, 8343), (2511, 7931), (2781, 7161), (3069, 6489), (3193, 6237), (3399, 5859)]