21172552

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{263}}^1\times {\mathrm{347}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 41342400

約数和(自身を除く): 20169848

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 263, 347, 526, 694, 1052, 1388, 2104, 2776, 7627, 10063, 15254, 20126, 30508, 40252, 61016, 80504, 91261, 182522, 365044, 730088, 2646569, 5293138, 10586276, 21172552]

約数ペア:

[(1, 21172552), (2, 10586276), (4, 5293138), (8, 2646569), (29, 730088), (58, 365044), (116, 182522), (232, 91261), (263, 80504), (347, 61016), (526, 40252), (694, 30508), (1052, 20126), (1388, 15254), (2104, 10063), (2776, 7627)]