20977518

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{2141}}^1$

素因数の和:2240

約数の個数: 32

約数和(自身を含む): 44416512

約数和(自身を除く): 23438994

約数列:

[1, 2, 3, 6, 23, 46, 69, 71, 138, 142, 213, 426, 1633, 2141, 3266, 4282, 4899, 6423, 9798, 12846, 49243, 98486, 147729, 152011, 295458, 304022, 456033, 912066, 3496253, 6992506, 10488759, 20977518]

約数ペア:

[(1, 20977518), (2, 10488759), (3, 6992506), (6, 3496253), (23, 912066), (46, 456033), (69, 304022), (71, 295458), (138, 152011), (142, 147729), (213, 98486), (426, 49243), (1633, 12846), (2141, 9798), (3266, 6423), (4282, 4899)]