21437936

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{103067}}^1$

素因数の和:103088

約数の個数: 20

約数和(自身を含む): 44731512

約数和(自身を除く): 23293576

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 103067, 206134, 412268, 824536, 1339871, 1649072, 2679742, 5359484, 10718968, 21437936]

約数ペア:

[(1, 21437936), (2, 10718968), (4, 5359484), (8, 2679742), (13, 1649072), (16, 1339871), (26, 824536), (52, 412268), (104, 206134), (208, 103067)]