20722788

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{10861}}^1$

素因数の和:10924

約数の個数: 36

約数和(自身を含む): 53375868

約数和(自身を除く): 32653080

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 159, 212, 318, 477, 636, 954, 1908, 10861, 21722, 32583, 43444, 65166, 97749, 130332, 195498, 390996, 575633, 1151266, 1726899, 2302532, 3453798, 5180697, 6907596, 10361394, 20722788]

約数ペア:

[(1, 20722788), (2, 10361394), (3, 6907596), (4, 5180697), (6, 3453798), (9, 2302532), (12, 1726899), (18, 1151266), (36, 575633), (53, 390996), (106, 195498), (159, 130332), (212, 97749), (318, 65166), (477, 43444), (636, 32583), (954, 21722), (1908, 10861)]