20995812

素因数分解:

$2^2\times 3^2\times {\mathrm{89}}^1\times {\mathrm{6553}}^1$

素因数の和:6652

約数の個数: 36

約数和(自身を含む): 53677260

約数和(自身を除く): 32681448

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 89, 178, 267, 356, 534, 801, 1068, 1602, 3204, 6553, 13106, 19659, 26212, 39318, 58977, 78636, 117954, 235908, 583217, 1166434, 1749651, 2332868, 3499302, 5248953, 6998604, 10497906, 20995812]

約数ペア:

[(1, 20995812), (2, 10497906), (3, 6998604), (4, 5248953), (6, 3499302), (9, 2332868), (12, 1749651), (18, 1166434), (36, 583217), (89, 235908), (178, 117954), (267, 78636), (356, 58977), (534, 39318), (801, 26212), (1068, 19659), (1602, 13106), (3204, 6553)]