16421505

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 27105408

約数和(自身を除く): 10683903

約数列:

[1, 3, 5, 15, 61, 131, 137, 183, 305, 393, 411, 655, 685, 915, 1965, 2055, 7991, 8357, 17947, 23973, 25071, 39955, 41785, 53841, 89735, 119865, 125355, 269205, 1094767, 3284301, 5473835, 16421505]

約数ペア:

[(1, 16421505), (3, 5473835), (5, 3284301), (15, 1094767), (61, 269205), (131, 125355), (137, 119865), (183, 89735), (305, 53841), (393, 41785), (411, 39955), (655, 25071), (685, 23973), (915, 17947), (1965, 8357), (2055, 7991)]