18534789

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:147

約数の個数: 72

約数和(自身を含む): 34732152

約数和(自身を除く): 16197363

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 53, 61, 63, 91, 117, 147, 159, 183, 273, 371, 427, 441, 477, 549, 637, 689, 793, 819, 1113, 1281, 1911, 2067, 2379, 2597, 2989, 3233, 3339, 3843, 4823, 5551, 5733, 6201, 7137, 7791, 8967, 9699, 14469, 16653, 22631, 23373, 26901, 29097, 33761, 38857, 42029, 43407, 49959, 67893, 101283, 116571, 126087, 158417, 203679, 294203, 303849, 349713, 378261, 475251, 882609, 1425753, 2059421, 2647827, 6178263, 18534789]

約数ペア:

[(1, 18534789), (3, 6178263), (7, 2647827), (9, 2059421), (13, 1425753), (21, 882609), (39, 475251), (49, 378261), (53, 349713), (61, 303849), (63, 294203), (91, 203679), (117, 158417), (147, 126087), (159, 116571), (183, 101283), (273, 67893), (371, 49959), (427, 43407), (441, 42029), (477, 38857), (549, 33761), (637, 29097), (689, 26901), (793, 23373), (819, 22631), (1113, 16653), (1281, 14469), (1911, 9699), (2067, 8967), (2379, 7791), (2597, 7137), (2989, 6201), (3233, 5733), (3339, 5551), (3843, 4823)]