221736555

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{631}}^1$

素因数の和:801

約数の個数: 64

約数和(自身を含む): 418636800

約数和(自身を除く): 196900245

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 137, 171, 285, 411, 513, 631, 685, 855, 1233, 1893, 2055, 2565, 2603, 3155, 3699, 5679, 6165, 7809, 9465, 11989, 13015, 17037, 18495, 23427, 28395, 35967, 39045, 59945, 70281, 85185, 86447, 107901, 117135, 179835, 259341, 323703, 351405, 432235, 539505, 778023, 1296705, 1618515, 1642493, 2334069, 3890115, 4927479, 8212465, 11670345, 14782437, 24637395, 44347311, 73912185, 221736555]

約数ペア:

[(1, 221736555), (3, 73912185), (5, 44347311), (9, 24637395), (15, 14782437), (19, 11670345), (27, 8212465), (45, 4927479), (57, 3890115), (95, 2334069), (135, 1642493), (137, 1618515), (171, 1296705), (285, 778023), (411, 539505), (513, 432235), (631, 351405), (685, 323703), (855, 259341), (1233, 179835), (1893, 117135), (2055, 107901), (2565, 86447), (2603, 85185), (3155, 70281), (3699, 59945), (5679, 39045), (6165, 35967), (7809, 28395), (9465, 23427), (11989, 18495), (13015, 17037)]