20801104

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{857}}^1$

素因数の和:943

約数の個数: 40

約数和(自身を含む): 42450408

約数和(自身を除く): 21649304

約数列:

[1, 2, 4, 8, 16, 37, 41, 74, 82, 148, 164, 296, 328, 592, 656, 857, 1517, 1714, 3034, 3428, 6068, 6856, 12136, 13712, 24272, 31709, 35137, 63418, 70274, 126836, 140548, 253672, 281096, 507344, 562192, 1300069, 2600138, 5200276, 10400552, 20801104]

約数ペア:

[(1, 20801104), (2, 10400552), (4, 5200276), (8, 2600138), (16, 1300069), (37, 562192), (41, 507344), (74, 281096), (82, 253672), (148, 140548), (164, 126836), (296, 70274), (328, 63418), (592, 35137), (656, 31709), (857, 24272), (1517, 13712), (1714, 12136), (3034, 6856), (3428, 6068)]