21948795

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:201

約数の個数: 72

約数和(自身を含む): 43570800

約数和(自身を除く): 21622005

約数列:

[1, 3, 5, 9, 11, 15, 29, 33, 45, 55, 87, 99, 121, 139, 145, 165, 261, 319, 363, 417, 435, 495, 605, 695, 957, 1089, 1251, 1305, 1529, 1595, 1815, 2085, 2871, 3509, 4031, 4587, 4785, 5445, 6255, 7645, 10527, 12093, 13761, 14355, 16819, 17545, 20155, 22935, 31581, 36279, 44341, 50457, 52635, 60465, 68805, 84095, 133023, 151371, 157905, 181395, 221705, 252285, 399069, 487751, 665115, 756855, 1463253, 1995345, 2438755, 4389759, 7316265, 21948795]

約数ペア:

[(1, 21948795), (3, 7316265), (5, 4389759), (9, 2438755), (11, 1995345), (15, 1463253), (29, 756855), (33, 665115), (45, 487751), (55, 399069), (87, 252285), (99, 221705), (121, 181395), (139, 157905), (145, 151371), (165, 133023), (261, 84095), (319, 68805), (363, 60465), (417, 52635), (435, 50457), (495, 44341), (605, 36279), (695, 31581), (957, 22935), (1089, 20155), (1251, 17545), (1305, 16819), (1529, 14355), (1595, 13761), (1815, 12093), (2085, 10527), (2871, 7645), (3509, 6255), (4031, 5445), (4587, 4785)]