21505758

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2657}}^1$

素因数の和:2752

約数の個数: 32

約数和(自身を含む): 45930240

約数和(自身を除く): 24424482

約数列:

[1, 2, 3, 6, 19, 38, 57, 71, 114, 142, 213, 426, 1349, 2657, 2698, 4047, 5314, 7971, 8094, 15942, 50483, 100966, 151449, 188647, 302898, 377294, 565941, 1131882, 3584293, 7168586, 10752879, 21505758]

約数ペア:

[(1, 21505758), (2, 10752879), (3, 7168586), (6, 3584293), (19, 1131882), (38, 565941), (57, 377294), (71, 302898), (114, 188647), (142, 151449), (213, 100966), (426, 50483), (1349, 15942), (2657, 8094), (2698, 7971), (4047, 5314)]