16403985

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{719}}^1$

素因数の和:759

約数の個数: 48

約数和(自身を含む): 31622400

約数和(自身を除く): 15218415

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 169, 195, 351, 507, 585, 719, 845, 1521, 1755, 2157, 2535, 3595, 4563, 6471, 7605, 9347, 10785, 19413, 22815, 28041, 32355, 46735, 84123, 97065, 121511, 140205, 252369, 364533, 420615, 607555, 1093599, 1261845, 1822665, 3280797, 5467995, 16403985]

約数ペア:

[(1, 16403985), (3, 5467995), (5, 3280797), (9, 1822665), (13, 1261845), (15, 1093599), (27, 607555), (39, 420615), (45, 364533), (65, 252369), (117, 140205), (135, 121511), (169, 97065), (195, 84123), (351, 46735), (507, 32355), (585, 28041), (719, 22815), (845, 19413), (1521, 10785), (1755, 9347), (2157, 7605), (2535, 6471), (3595, 4563)]