2647827

素因数分解:

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

素因数の和:140

約数の個数: 48

約数和(自身を含む): 4874688

約数和(自身を除く): 2226861

約数列:

[1, 3, 7, 9, 13, 21, 39, 53, 61, 63, 91, 117, 159, 183, 273, 371, 427, 477, 549, 689, 793, 819, 1113, 1281, 2067, 2379, 3233, 3339, 3843, 4823, 5551, 6201, 7137, 9699, 14469, 16653, 22631, 29097, 42029, 43407, 49959, 67893, 126087, 203679, 294203, 378261, 882609, 2647827]

約数ペア:

[(1, 2647827), (3, 882609), (7, 378261), (9, 294203), (13, 203679), (21, 126087), (39, 67893), (53, 49959), (61, 43407), (63, 42029), (91, 29097), (117, 22631), (159, 16653), (183, 14469), (273, 9699), (371, 7137), (427, 6201), (477, 5551), (549, 4823), (689, 3843), (793, 3339), (819, 3233), (1113, 2379), (1281, 2067)]