20745468

素因数分解:

$2^2\times 3^2\times {\mathrm{173}}^1\times {\mathrm{3331}}^1$

素因数の和:3514

約数の個数: 36

約数和(自身を含む): 52758888

約数和(自身を除く): 32013420

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 173, 346, 519, 692, 1038, 1557, 2076, 3114, 3331, 6228, 6662, 9993, 13324, 19986, 29979, 39972, 59958, 119916, 576263, 1152526, 1728789, 2305052, 3457578, 5186367, 6915156, 10372734, 20745468]

約数ペア:

[(1, 20745468), (2, 10372734), (3, 6915156), (4, 5186367), (6, 3457578), (9, 2305052), (12, 1728789), (18, 1152526), (36, 576263), (173, 119916), (346, 59958), (519, 39972), (692, 29979), (1038, 19986), (1557, 13324), (2076, 9993), (3114, 6662), (3331, 6228)]