20553584

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21059}}^1$

素因数の和:21128

約数の個数: 20

約数和(自身を含む): 40477320

約数和(自身を除く): 19923736

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21059, 42118, 84236, 168472, 336944, 1284599, 2569198, 5138396, 10276792, 20553584]

約数ペア:

[(1, 20553584), (2, 10276792), (4, 5138396), (8, 2569198), (16, 1284599), (61, 336944), (122, 168472), (244, 84236), (488, 42118), (976, 21059)]