21744540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1129}}^1$

素因数の和:1251

約数の個数: 72

約数和(自身を含む): 66633840

約数和(自身を除く): 44889300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 107, 180, 214, 321, 428, 535, 642, 963, 1070, 1129, 1284, 1605, 1926, 2140, 2258, 3210, 3387, 3852, 4516, 4815, 5645, 6420, 6774, 9630, 10161, 11290, 13548, 16935, 19260, 20322, 22580, 33870, 40644, 50805, 67740, 101610, 120803, 203220, 241606, 362409, 483212, 604015, 724818, 1087227, 1208030, 1449636, 1812045, 2174454, 2416060, 3624090, 4348908, 5436135, 7248180, 10872270, 21744540]

約数ペア:

[(1, 21744540), (2, 10872270), (3, 7248180), (4, 5436135), (5, 4348908), (6, 3624090), (9, 2416060), (10, 2174454), (12, 1812045), (15, 1449636), (18, 1208030), (20, 1087227), (30, 724818), (36, 604015), (45, 483212), (60, 362409), (90, 241606), (107, 203220), (180, 120803), (214, 101610), (321, 67740), (428, 50805), (535, 40644), (642, 33870), (963, 22580), (1070, 20322), (1129, 19260), (1284, 16935), (1605, 13548), (1926, 11290), (2140, 10161), (2258, 9630), (3210, 6774), (3387, 6420), (3852, 5645), (4516, 4815)]