16887865

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 22809600

約数和(自身を除く): 5921735

約数列:

[1, 5, 19, 23, 59, 95, 115, 131, 295, 437, 655, 1121, 1357, 2185, 2489, 3013, 5605, 6785, 7729, 12445, 15065, 25783, 38645, 57247, 128915, 146851, 177767, 286235, 734255, 888835, 3377573, 16887865]

約数ペア:

[(1, 16887865), (5, 3377573), (19, 888835), (23, 734255), (59, 286235), (95, 177767), (115, 146851), (131, 128915), (295, 57247), (437, 38645), (655, 25783), (1121, 15065), (1357, 12445), (2185, 7729), (2489, 6785), (3013, 5605)]