71220123

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{587}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 119429856

約数和(自身を除く): 48209733

約数列:

[1, 3, 9, 13, 17, 39, 51, 61, 117, 153, 183, 221, 549, 587, 663, 793, 1037, 1761, 1989, 2379, 3111, 5283, 7137, 7631, 9333, 9979, 13481, 22893, 29937, 35807, 40443, 68679, 89811, 107421, 121329, 129727, 322263, 389181, 465491, 608719, 1167543, 1396473, 1826157, 4189419, 5478471, 7913347, 23740041, 71220123]

約数ペア:

[(1, 71220123), (3, 23740041), (9, 7913347), (13, 5478471), (17, 4189419), (39, 1826157), (51, 1396473), (61, 1167543), (117, 608719), (153, 465491), (183, 389181), (221, 322263), (549, 129727), (587, 121329), (663, 107421), (793, 89811), (1037, 68679), (1761, 40443), (1989, 35807), (2379, 29937), (3111, 22893), (5283, 13481), (7137, 9979), (7631, 9333)]