21186872

素因数分解:

$2^3\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1583}}^1$

素因数の和:1835

約数の個数: 32

約数和(自身を含む): 45619200

約数和(自身を除く): 24432328

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 239, 478, 956, 1583, 1673, 1912, 3166, 3346, 6332, 6692, 11081, 12664, 13384, 22162, 44324, 88648, 378337, 756674, 1513348, 2648359, 3026696, 5296718, 10593436, 21186872]

約数ペア:

[(1, 21186872), (2, 10593436), (4, 5296718), (7, 3026696), (8, 2648359), (14, 1513348), (28, 756674), (56, 378337), (239, 88648), (478, 44324), (956, 22162), (1583, 13384), (1673, 12664), (1912, 11081), (3166, 6692), (3346, 6332)]