20899710

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17863}}^1$

素因数の和:17889

約数の個数: 48

約数和(自身を含む): 58522464

約数和(自身を除く): 37622754

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 17863, 35726, 53589, 89315, 107178, 160767, 178630, 232219, 267945, 321534, 464438, 535890, 696657, 803835, 1161095, 1393314, 1607670, 2089971, 2322190, 3483285, 4179942, 6966570, 10449855, 20899710]

約数ペア:

[(1, 20899710), (2, 10449855), (3, 6966570), (5, 4179942), (6, 3483285), (9, 2322190), (10, 2089971), (13, 1607670), (15, 1393314), (18, 1161095), (26, 803835), (30, 696657), (39, 535890), (45, 464438), (65, 321534), (78, 267945), (90, 232219), (117, 178630), (130, 160767), (195, 107178), (234, 89315), (390, 53589), (585, 35726), (1170, 17863)]