21405034

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:558

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 16697366

約数列:

[1, 2, 7, 14, 41, 82, 89, 178, 287, 419, 574, 623, 838, 1246, 2933, 3649, 5866, 7298, 17179, 25543, 34358, 37291, 51086, 74582, 120253, 240506, 261037, 522074, 1528931, 3057862, 10702517, 21405034]

約数ペア:

[(1, 21405034), (2, 10702517), (7, 3057862), (14, 1528931), (41, 522074), (82, 261037), (89, 240506), (178, 120253), (287, 74582), (419, 51086), (574, 37291), (623, 34358), (838, 25543), (1246, 17179), (2933, 7298), (3649, 5866)]