19901934

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5003}}^1$

素因数の和:5041

約数の個数: 48

約数和(自身を含む): 49179312

約数和(自身を除く): 29277378

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 5003, 10006, 15009, 30018, 45027, 65039, 85051, 90054, 130078, 170102, 195117, 255153, 390234, 510306, 585351, 765459, 1105663, 1170702, 1530918, 2211326, 3316989, 6633978, 9950967, 19901934]

約数ペア:

[(1, 19901934), (2, 9950967), (3, 6633978), (6, 3316989), (9, 2211326), (13, 1530918), (17, 1170702), (18, 1105663), (26, 765459), (34, 585351), (39, 510306), (51, 390234), (78, 255153), (102, 195117), (117, 170102), (153, 130078), (221, 90054), (234, 85051), (306, 65039), (442, 45027), (663, 30018), (1326, 15009), (1989, 10006), (3978, 5003)]