21370720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19081}}^1$

素因数の和:19103

約数の個数: 48

約数和(自身を含む): 57703968

約数和(自身を除く): 36333248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 19081, 38162, 76324, 95405, 133567, 152648, 190810, 267134, 305296, 381620, 534268, 610592, 667835, 763240, 1068536, 1335670, 1526480, 2137072, 2671340, 3052960, 4274144, 5342680, 10685360, 21370720]

約数ペア:

[(1, 21370720), (2, 10685360), (4, 5342680), (5, 4274144), (7, 3052960), (8, 2671340), (10, 2137072), (14, 1526480), (16, 1335670), (20, 1068536), (28, 763240), (32, 667835), (35, 610592), (40, 534268), (56, 381620), (70, 305296), (80, 267134), (112, 190810), (140, 152648), (160, 133567), (224, 95405), (280, 76324), (560, 38162), (1120, 19081)]