21828748

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{821}}^1$

素因数の和:882

約数の個数: 36

約数和(自身を含む): 42395472

約数和(自身を除く): 20566724

約数列:

[1, 2, 4, 17, 23, 34, 46, 68, 92, 289, 391, 578, 782, 821, 1156, 1564, 1642, 3284, 6647, 13294, 13957, 18883, 26588, 27914, 37766, 55828, 75532, 237269, 321011, 474538, 642022, 949076, 1284044, 5457187, 10914374, 21828748]

約数ペア:

[(1, 21828748), (2, 10914374), (4, 5457187), (17, 1284044), (23, 949076), (34, 642022), (46, 474538), (68, 321011), (92, 237269), (289, 75532), (391, 55828), (578, 37766), (782, 27914), (821, 26588), (1156, 18883), (1564, 13957), (1642, 13294), (3284, 6647)]