19354385

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 25712640

約数和(自身を除く): 6358255

約数列:

[1, 5, 23, 31, 61, 89, 115, 155, 305, 445, 713, 1403, 1891, 2047, 2759, 3565, 5429, 7015, 9455, 10235, 13795, 27145, 43493, 63457, 124867, 168299, 217465, 317285, 624335, 841495, 3870877, 19354385]

約数ペア:

[(1, 19354385), (5, 3870877), (23, 841495), (31, 624335), (61, 317285), (89, 217465), (115, 168299), (155, 124867), (305, 63457), (445, 43493), (713, 27145), (1403, 13795), (1891, 10235), (2047, 9455), (2759, 7015), (3565, 5429)]