56721903

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{569}}^1$

素因数の和:727

約数の個数: 32

約数和(自身を含む): 89303040

約数和(自身を除く): 32581137

約数列:

[1, 3, 7, 21, 47, 101, 141, 303, 329, 569, 707, 987, 1707, 2121, 3983, 4747, 11949, 14241, 26743, 33229, 57469, 80229, 99687, 172407, 187201, 402283, 561603, 1206849, 2701043, 8103129, 18907301, 56721903]

約数ペア:

[(1, 56721903), (3, 18907301), (7, 8103129), (21, 2701043), (47, 1206849), (101, 561603), (141, 402283), (303, 187201), (329, 172407), (569, 99687), (707, 80229), (987, 57469), (1707, 33229), (2121, 26743), (3983, 14241), (4747, 11949)]