21691432

素因数分解:

$2^3\times 7^1\times {\mathrm{173}}^1\times {\mathrm{2239}}^1$

素因数の和:2425

約数の個数: 32

約数和(自身を含む): 46771200

約数和(自身を除く): 25079768

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 173, 346, 692, 1211, 1384, 2239, 2422, 4478, 4844, 8956, 9688, 15673, 17912, 31346, 62692, 125384, 387347, 774694, 1549388, 2711429, 3098776, 5422858, 10845716, 21691432]

約数ペア:

[(1, 21691432), (2, 10845716), (4, 5422858), (7, 3098776), (8, 2711429), (14, 1549388), (28, 774694), (56, 387347), (173, 125384), (346, 62692), (692, 31346), (1211, 17912), (1384, 15673), (2239, 9688), (2422, 8956), (4478, 4844)]