20197764

素因数分解:

$2^2\times 3^2\times {\mathrm{211}}^1\times {\mathrm{2659}}^1$

素因数の和:2880

約数の個数: 36

約数和(自身を含む): 51316720

約数和(自身を除く): 31118956

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 211, 422, 633, 844, 1266, 1899, 2532, 2659, 3798, 5318, 7596, 7977, 10636, 15954, 23931, 31908, 47862, 95724, 561049, 1122098, 1683147, 2244196, 3366294, 5049441, 6732588, 10098882, 20197764]

約数ペア:

[(1, 20197764), (2, 10098882), (3, 6732588), (4, 5049441), (6, 3366294), (9, 2244196), (12, 1683147), (18, 1122098), (36, 561049), (211, 95724), (422, 47862), (633, 31908), (844, 23931), (1266, 15954), (1899, 10636), (2532, 7977), (2659, 7596), (3798, 5318)]