20856972

素因数分解:

$2^2\times 3^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 50198400

約数和(自身を除く): 29341428

約数列:

[1, 2, 3, 4, 6, 12, 59, 89, 118, 177, 178, 236, 267, 331, 354, 356, 534, 662, 708, 993, 1068, 1324, 1986, 3972, 5251, 10502, 15753, 19529, 21004, 29459, 31506, 39058, 58587, 58918, 63012, 78116, 88377, 117174, 117836, 176754, 234348, 353508, 1738081, 3476162, 5214243, 6952324, 10428486, 20856972]

約数ペア:

[(1, 20856972), (2, 10428486), (3, 6952324), (4, 5214243), (6, 3476162), (12, 1738081), (59, 353508), (89, 234348), (118, 176754), (177, 117836), (178, 117174), (236, 88377), (267, 78116), (331, 63012), (354, 58918), (356, 58587), (534, 39058), (662, 31506), (708, 29459), (993, 21004), (1068, 19529), (1324, 15753), (1986, 10502), (3972, 5251)]