21637408

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{4001}}^1$

素因数の和:4037

約数の個数: 36

約数和(自身を含む): 46139058

約数和(自身を除く): 24501650

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 4001, 5408, 8002, 16004, 32008, 52013, 64016, 104026, 128032, 208052, 416104, 676169, 832208, 1352338, 1664416, 2704676, 5409352, 10818704, 21637408]

約数ペア:

[(1, 21637408), (2, 10818704), (4, 5409352), (8, 2704676), (13, 1664416), (16, 1352338), (26, 832208), (32, 676169), (52, 416104), (104, 208052), (169, 128032), (208, 104026), (338, 64016), (416, 52013), (676, 32008), (1352, 16004), (2704, 8002), (4001, 5408)]