21529280

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3541}}^1$

素因数の和:3577

約数の個数: 56

約数和(自身を含む): 53980080

約数和(自身を除く): 32450800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 3541, 6080, 7082, 14164, 17705, 28328, 35410, 56656, 67279, 70820, 113312, 134558, 141640, 226624, 269116, 283280, 336395, 538232, 566560, 672790, 1076464, 1133120, 1345580, 2152928, 2691160, 4305856, 5382320, 10764640, 21529280]

約数ペア:

[(1, 21529280), (2, 10764640), (4, 5382320), (5, 4305856), (8, 2691160), (10, 2152928), (16, 1345580), (19, 1133120), (20, 1076464), (32, 672790), (38, 566560), (40, 538232), (64, 336395), (76, 283280), (80, 269116), (95, 226624), (152, 141640), (160, 134558), (190, 113312), (304, 70820), (320, 67279), (380, 56656), (608, 35410), (760, 28328), (1216, 17705), (1520, 14164), (3040, 7082), (3541, 6080)]