21177887615

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2153}}^1\times {\mathrm{3733}}^1$

素因数の和:5939

約数の個数: 32

約数和(自身を含む): 27796732416

約数和(自身を除く): 6618844801

約数列:

[1, 5, 17, 31, 85, 155, 527, 2153, 2635, 3733, 10765, 18665, 36601, 63461, 66743, 115723, 183005, 317305, 333715, 578615, 1134631, 1967291, 5673155, 8037149, 9836455, 40185745, 136631533, 249151619, 683157665, 1245758095, 4235577523, 21177887615]

約数ペア:

[(1, 21177887615), (5, 4235577523), (17, 1245758095), (31, 683157665), (85, 249151619), (155, 136631533), (527, 40185745), (2153, 9836455), (2635, 8037149), (3733, 5673155), (10765, 1967291), (18665, 1134631), (36601, 578615), (63461, 333715), (66743, 317305), (115723, 183005)]