21088908

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^2\times {\mathrm{2027}}^1$

素因数の和:2071

約数の個数: 54

約数和(自身を含む): 56656236

約数和(自身を除く): 35567328

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 289, 306, 578, 612, 867, 1156, 1734, 2027, 2601, 3468, 4054, 5202, 6081, 8108, 10404, 12162, 18243, 24324, 34459, 36486, 68918, 72972, 103377, 137836, 206754, 310131, 413508, 585803, 620262, 1171606, 1240524, 1757409, 2343212, 3514818, 5272227, 7029636, 10544454, 21088908]

約数ペア:

[(1, 21088908), (2, 10544454), (3, 7029636), (4, 5272227), (6, 3514818), (9, 2343212), (12, 1757409), (17, 1240524), (18, 1171606), (34, 620262), (36, 585803), (51, 413508), (68, 310131), (102, 206754), (153, 137836), (204, 103377), (289, 72972), (306, 68918), (578, 36486), (612, 34459), (867, 24324), (1156, 18243), (1734, 12162), (2027, 10404), (2601, 8108), (3468, 6081), (4054, 5202)]