16404405

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2797}}^1$

素因数の和:2845

約数の個数: 32

約数和(自身を含む): 29009664

約数和(自身を除く): 12605259

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 2797, 5865, 8391, 13985, 41955, 47549, 64331, 142647, 192993, 237745, 321655, 713235, 964965, 1093627, 3280881, 5468135, 16404405]

約数ペア:

[(1, 16404405), (3, 5468135), (5, 3280881), (15, 1093627), (17, 964965), (23, 713235), (51, 321655), (69, 237745), (85, 192993), (115, 142647), (255, 64331), (345, 47549), (391, 41955), (1173, 13985), (1955, 8391), (2797, 5865)]