18421754

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 31752000

約数和(自身を除く): 13330246

約数列:

[1, 2, 13, 19, 26, 38, 89, 178, 247, 419, 494, 838, 1157, 1691, 2314, 3382, 5447, 7961, 10894, 15922, 21983, 37291, 43966, 74582, 103493, 206986, 484783, 708529, 969566, 1417058, 9210877, 18421754]

約数ペア:

[(1, 18421754), (2, 9210877), (13, 1417058), (19, 969566), (26, 708529), (38, 484783), (89, 206986), (178, 103493), (247, 74582), (419, 43966), (494, 37291), (838, 21983), (1157, 15922), (1691, 10894), (2314, 7961), (3382, 5447)]