20791456

素因数分解:

$2^5\times 7^1\times {\mathrm{101}}^1\times {\mathrm{919}}^1$

素因数の和:1037

約数の個数: 48

約数和(自身を含む): 47295360

約数和(自身を除く): 26503904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 101, 112, 202, 224, 404, 707, 808, 919, 1414, 1616, 1838, 2828, 3232, 3676, 5656, 6433, 7352, 11312, 12866, 14704, 22624, 25732, 29408, 51464, 92819, 102928, 185638, 205856, 371276, 649733, 742552, 1299466, 1485104, 2598932, 2970208, 5197864, 10395728, 20791456]

約数ペア:

[(1, 20791456), (2, 10395728), (4, 5197864), (7, 2970208), (8, 2598932), (14, 1485104), (16, 1299466), (28, 742552), (32, 649733), (56, 371276), (101, 205856), (112, 185638), (202, 102928), (224, 92819), (404, 51464), (707, 29408), (808, 25732), (919, 22624), (1414, 14704), (1616, 12866), (1838, 11312), (2828, 7352), (3232, 6433), (3676, 5656)]