221279355

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{40639}}^1$

素因数の和:40672

約数の個数: 36

約数和(自身を含む): 421599360

約数和(自身を除く): 200320005

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 121, 165, 363, 495, 605, 1089, 1815, 5445, 40639, 121917, 203195, 365751, 447029, 609585, 1341087, 1828755, 2235145, 4023261, 4917319, 6705435, 14751957, 20116305, 24586595, 44255871, 73759785, 221279355]

約数ペア:

[(1, 221279355), (3, 73759785), (5, 44255871), (9, 24586595), (11, 20116305), (15, 14751957), (33, 6705435), (45, 4917319), (55, 4023261), (99, 2235145), (121, 1828755), (165, 1341087), (363, 609585), (495, 447029), (605, 365751), (1089, 203195), (1815, 121917), (5445, 40639)]