21702945

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4243}}^1$

素因数の和:4293

約数の個数: 32

約数和(自身を含む): 39112704

約数和(自身を除く): 17409759

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 155, 165, 341, 465, 1023, 1705, 4243, 5115, 12729, 21215, 46673, 63645, 131533, 140019, 233365, 394599, 657665, 700095, 1446863, 1972995, 4340589, 7234315, 21702945]

約数ペア:

[(1, 21702945), (3, 7234315), (5, 4340589), (11, 1972995), (15, 1446863), (31, 700095), (33, 657665), (55, 394599), (93, 233365), (155, 140019), (165, 131533), (341, 63645), (465, 46673), (1023, 21215), (1705, 12729), (4243, 5115)]