21309156

素因数分解:

$2^2\times 3^5\times {\mathrm{11}}^1\times {\mathrm{1993}}^1$

素因数の和:2023

約数の個数: 72

約数和(自身を含む): 60968544

約数和(自身を除く): 39659388

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 54, 66, 81, 99, 108, 132, 162, 198, 243, 297, 324, 396, 486, 594, 891, 972, 1188, 1782, 1993, 2673, 3564, 3986, 5346, 5979, 7972, 10692, 11958, 17937, 21923, 23916, 35874, 43846, 53811, 65769, 71748, 87692, 107622, 131538, 161433, 197307, 215244, 263076, 322866, 394614, 484299, 591921, 645732, 789228, 968598, 1183842, 1775763, 1937196, 2367684, 3551526, 5327289, 7103052, 10654578, 21309156]

約数ペア:

[(1, 21309156), (2, 10654578), (3, 7103052), (4, 5327289), (6, 3551526), (9, 2367684), (11, 1937196), (12, 1775763), (18, 1183842), (22, 968598), (27, 789228), (33, 645732), (36, 591921), (44, 484299), (54, 394614), (66, 322866), (81, 263076), (99, 215244), (108, 197307), (132, 161433), (162, 131538), (198, 107622), (243, 87692), (297, 71748), (324, 65769), (396, 53811), (486, 43846), (594, 35874), (891, 23916), (972, 21923), (1188, 17937), (1782, 11958), (1993, 10692), (2673, 7972), (3564, 5979), (3986, 5346)]