19917814

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^2\times {\mathrm{563}}^1$

素因数の和:617

約数の個数: 36

約数和(自身を含む): 36745164

約数和(自身を除く): 16827350

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 361, 563, 722, 931, 1126, 1862, 2527, 3941, 5054, 7882, 10697, 17689, 21394, 27587, 35378, 55174, 74879, 149758, 203243, 406486, 524153, 1048306, 1422701, 2845402, 9958907, 19917814]

約数ペア:

[(1, 19917814), (2, 9958907), (7, 2845402), (14, 1422701), (19, 1048306), (38, 524153), (49, 406486), (98, 203243), (133, 149758), (266, 74879), (361, 55174), (563, 35378), (722, 27587), (931, 21394), (1126, 17689), (1862, 10697), (2527, 7882), (3941, 5054)]