21432015

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1493}}^1$

素因数の和:1544

約数の個数: 48

約数和(自身を含む): 41951520

約数和(自身を除く): 20519505

約数列:

[1, 3, 5, 9, 11, 15, 29, 33, 45, 55, 87, 99, 145, 165, 261, 319, 435, 495, 957, 1305, 1493, 1595, 2871, 4479, 4785, 7465, 13437, 14355, 16423, 22395, 43297, 49269, 67185, 82115, 129891, 147807, 216485, 246345, 389673, 476267, 649455, 739035, 1428801, 1948365, 2381335, 4286403, 7144005, 21432015]

約数ペア:

[(1, 21432015), (3, 7144005), (5, 4286403), (9, 2381335), (11, 1948365), (15, 1428801), (29, 739035), (33, 649455), (45, 476267), (55, 389673), (87, 246345), (99, 216485), (145, 147807), (165, 129891), (261, 82115), (319, 67185), (435, 49269), (495, 43297), (957, 22395), (1305, 16423), (1493, 14355), (1595, 13437), (2871, 7465), (4479, 4785)]