21240932

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{263}}^1\times {\mathrm{331}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 38039232

約数和(自身を除く): 16798300

約数列:

[1, 2, 4, 61, 122, 244, 263, 331, 526, 662, 1052, 1324, 16043, 20191, 32086, 40382, 64172, 80764, 87053, 174106, 348212, 5310233, 10620466, 21240932]

約数ペア:

[(1, 21240932), (2, 10620466), (4, 5310233), (61, 348212), (122, 174106), (244, 87053), (263, 80764), (331, 64172), (526, 40382), (662, 32086), (1052, 20191), (1324, 16043)]