20121399645

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{460813}}^1$

素因数の和:460933

約数の個数: 32

約数和(自身を含む): 33444036864

約数和(自身を除く): 13322637219

約数列:

[1, 3, 5, 15, 41, 71, 123, 205, 213, 355, 615, 1065, 2911, 8733, 14555, 43665, 460813, 1382439, 2304065, 6912195, 18893333, 32717723, 56679999, 94466665, 98153169, 163588615, 283399995, 490765845, 1341426643, 4024279929, 6707133215, 20121399645]

約数ペア:

[(1, 20121399645), (3, 6707133215), (5, 4024279929), (15, 1341426643), (41, 490765845), (71, 283399995), (123, 163588615), (205, 98153169), (213, 94466665), (355, 56679999), (615, 32717723), (1065, 18893333), (2911, 6912195), (8733, 2304065), (14555, 1382439), (43665, 460813)]