21015396

素因数分解:

$2^2\times 3^3\times {\mathrm{31}}^1\times {\mathrm{6277}}^1$

素因数の和:6321

約数の個数: 48

約数和(自身を含む): 56250880

約数和(自身を除く): 35235484

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 54, 62, 93, 108, 124, 186, 279, 372, 558, 837, 1116, 1674, 3348, 6277, 12554, 18831, 25108, 37662, 56493, 75324, 112986, 169479, 194587, 225972, 338958, 389174, 583761, 677916, 778348, 1167522, 1751283, 2335044, 3502566, 5253849, 7005132, 10507698, 21015396]

約数ペア:

[(1, 21015396), (2, 10507698), (3, 7005132), (4, 5253849), (6, 3502566), (9, 2335044), (12, 1751283), (18, 1167522), (27, 778348), (31, 677916), (36, 583761), (54, 389174), (62, 338958), (93, 225972), (108, 194587), (124, 169479), (186, 112986), (279, 75324), (372, 56493), (558, 37662), (837, 25108), (1116, 18831), (1674, 12554), (3348, 6277)]