21320307

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{373}}^1$

素因数の和:484

約数の個数: 32

約数和(自身を含む): 33211200

約数和(自身を除く): 11890893

約数列:

[1, 3, 9, 27, 29, 73, 87, 219, 261, 373, 657, 783, 1119, 1971, 2117, 3357, 6351, 10071, 10817, 19053, 27229, 32451, 57159, 81687, 97353, 245061, 292059, 735183, 789641, 2368923, 7106769, 21320307]

約数ペア:

[(1, 21320307), (3, 7106769), (9, 2368923), (27, 789641), (29, 735183), (73, 292059), (87, 245061), (219, 97353), (261, 81687), (373, 57159), (657, 32451), (783, 27229), (1119, 19053), (1971, 10817), (2117, 10071), (3357, 6351)]