21199992

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{613}}^1$

素因数の和:764

約数の個数: 64

約数和(自身を含む): 58354560

約数和(自身を除く): 37154568

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 131, 132, 262, 264, 393, 524, 613, 786, 1048, 1226, 1441, 1572, 1839, 2452, 2882, 3144, 3678, 4323, 4904, 5764, 6743, 7356, 8646, 11528, 13486, 14712, 17292, 20229, 26972, 34584, 40458, 53944, 80303, 80916, 160606, 161832, 240909, 321212, 481818, 642424, 883333, 963636, 1766666, 1927272, 2649999, 3533332, 5299998, 7066664, 10599996, 21199992]

約数ペア:

[(1, 21199992), (2, 10599996), (3, 7066664), (4, 5299998), (6, 3533332), (8, 2649999), (11, 1927272), (12, 1766666), (22, 963636), (24, 883333), (33, 642424), (44, 481818), (66, 321212), (88, 240909), (131, 161832), (132, 160606), (262, 80916), (264, 80303), (393, 53944), (524, 40458), (613, 34584), (786, 26972), (1048, 20229), (1226, 17292), (1441, 14712), (1572, 13486), (1839, 11528), (2452, 8646), (2882, 7356), (3144, 6743), (3678, 5764), (4323, 4904)]