19987734

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{13487}}^1$

素因数の和:13524

約数の個数: 32

約数和(自身を含む): 45319680

約数和(自身を除く): 25331946

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 78, 114, 247, 494, 741, 1482, 13487, 26974, 40461, 80922, 175331, 256253, 350662, 512506, 525993, 768759, 1051986, 1537518, 3331289, 6662578, 9993867, 19987734]

約数ペア:

[(1, 19987734), (2, 9993867), (3, 6662578), (6, 3331289), (13, 1537518), (19, 1051986), (26, 768759), (38, 525993), (39, 512506), (57, 350662), (78, 256253), (114, 175331), (247, 80922), (494, 40461), (741, 26974), (1482, 13487)]