20972176

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{13513}}^1$

素因数の和:13618

約数の個数: 20

約数和(自身を含む): 41055532

約数和(自身を除く): 20083356

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 13513, 27026, 54052, 108104, 216208, 1310761, 2621522, 5243044, 10486088, 20972176]

約数ペア:

[(1, 20972176), (2, 10486088), (4, 5243044), (8, 2621522), (16, 1310761), (97, 216208), (194, 108104), (388, 54052), (776, 27026), (1552, 13513)]