19881810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16993}}^1$

素因数の和:17019

約数の個数: 48

約数和(自身を含む): 55672344

約数和(自身を除く): 35790534

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, 16993, 33986, 50979, 84965, 101958, 152937, 169930, 220909, 254895, 305874, 441818, 509790, 662727, 764685, 1104545, 1325454, 1529370, 1988181, 2209090, 3313635, 3976362, 6627270, 9940905, 19881810]

約数ペア:

[(1, 19881810), (2, 9940905), (3, 6627270), (5, 3976362), (6, 3313635), (9, 2209090), (10, 1988181), (13, 1529370), (15, 1325454), (18, 1104545), (26, 764685), (30, 662727), (39, 509790), (45, 441818), (65, 305874), (78, 254895), (90, 220909), (117, 169930), (130, 152937), (195, 101958), (234, 84965), (390, 50979), (585, 33986), (1170, 16993)]