21231170

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{853}}^1$

素因数の和:1010

約数の個数: 32

約数和(自身を含む): 40582080

約数和(自身を除く): 19350910

約数列:

[1, 2, 5, 10, 19, 38, 95, 131, 190, 262, 655, 853, 1310, 1706, 2489, 4265, 4978, 8530, 12445, 16207, 24890, 32414, 81035, 111743, 162070, 223486, 558715, 1117430, 2123117, 4246234, 10615585, 21231170]

約数ペア:

[(1, 21231170), (2, 10615585), (5, 4246234), (10, 2123117), (19, 1117430), (38, 558715), (95, 223486), (131, 162070), (190, 111743), (262, 81035), (655, 32414), (853, 24890), (1310, 16207), (1706, 12445), (2489, 8530), (4265, 4978)]