19838812

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 22497188

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 89, 133, 178, 266, 356, 419, 532, 623, 838, 1246, 1676, 1691, 2492, 2933, 3382, 5866, 6764, 7961, 11732, 11837, 15922, 23674, 31844, 37291, 47348, 55727, 74582, 111454, 149164, 222908, 261037, 522074, 708529, 1044148, 1417058, 2834116, 4959703, 9919406, 19838812]

約数ペア:

[(1, 19838812), (2, 9919406), (4, 4959703), (7, 2834116), (14, 1417058), (19, 1044148), (28, 708529), (38, 522074), (76, 261037), (89, 222908), (133, 149164), (178, 111454), (266, 74582), (356, 55727), (419, 47348), (532, 37291), (623, 31844), (838, 23674), (1246, 15922), (1676, 11837), (1691, 11732), (2492, 7961), (2933, 6764), (3382, 5866)]