21030432913

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{509}}^1\times {\mathrm{6551}}^1$

素因数の和:7137

約数の個数: 32

約数和(自身を含む): 25983659520

約数和(自身を除く): 4953226607

約数列:

[1, 7, 17, 53, 119, 371, 509, 901, 3563, 6307, 6551, 8653, 26977, 45857, 60571, 111367, 188839, 347203, 458609, 779569, 2430421, 3210263, 3334459, 5902451, 23341213, 41317157, 56685803, 176726327, 396800621, 1237084289, 3004347559, 21030432913]

約数ペア:

[(1, 21030432913), (7, 3004347559), (17, 1237084289), (53, 396800621), (119, 176726327), (371, 56685803), (509, 41317157), (901, 23341213), (3563, 5902451), (6307, 3334459), (6551, 3210263), (8653, 2430421), (26977, 779569), (45857, 458609), (60571, 347203), (111367, 188839)]