21285440

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6047}}^1$

素因数の和:6075

約数の個数: 56

約数和(自身を含む): 55302912

約数和(自身を除く): 34017472

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 6047, 12094, 24188, 30235, 48376, 60470, 66517, 96752, 120940, 133034, 193504, 241880, 266068, 332585, 387008, 483760, 532136, 665170, 967520, 1064272, 1330340, 1935040, 2128544, 2660680, 4257088, 5321360, 10642720, 21285440]

約数ペア:

[(1, 21285440), (2, 10642720), (4, 5321360), (5, 4257088), (8, 2660680), (10, 2128544), (11, 1935040), (16, 1330340), (20, 1064272), (22, 967520), (32, 665170), (40, 532136), (44, 483760), (55, 387008), (64, 332585), (80, 266068), (88, 241880), (110, 193504), (160, 133034), (176, 120940), (220, 96752), (320, 66517), (352, 60470), (440, 48376), (704, 30235), (880, 24188), (1760, 12094), (3520, 6047)]