21679095

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:160

約数の個数: 64

約数和(自身を含む): 39283200

約数和(自身を除く): 17604105

約数列:

[1, 3, 5, 15, 19, 29, 43, 57, 61, 87, 95, 129, 145, 183, 215, 285, 305, 435, 551, 645, 817, 915, 1159, 1247, 1653, 1769, 2451, 2623, 2755, 3477, 3741, 4085, 5307, 5795, 6235, 7869, 8265, 8845, 12255, 13115, 17385, 18705, 23693, 26535, 33611, 39345, 49837, 71079, 76067, 100833, 118465, 149511, 168055, 228201, 249185, 355395, 380335, 504165, 747555, 1141005, 1445273, 4335819, 7226365, 21679095]

約数ペア:

[(1, 21679095), (3, 7226365), (5, 4335819), (15, 1445273), (19, 1141005), (29, 747555), (43, 504165), (57, 380335), (61, 355395), (87, 249185), (95, 228201), (129, 168055), (145, 149511), (183, 118465), (215, 100833), (285, 76067), (305, 71079), (435, 49837), (551, 39345), (645, 33611), (817, 26535), (915, 23693), (1159, 18705), (1247, 17385), (1653, 13115), (1769, 12255), (2451, 8845), (2623, 8265), (2755, 7869), (3477, 6235), (3741, 5795), (4085, 5307)]