21963184

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{80747}}^1$

素因数の和:80772

約数の個数: 20

約数和(自身を含む): 45057384

約数和(自身を除く): 23094200

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 80747, 161494, 322988, 645976, 1291952, 1372699, 2745398, 5490796, 10981592, 21963184]

約数ペア:

[(1, 21963184), (2, 10981592), (4, 5490796), (8, 2745398), (16, 1372699), (17, 1291952), (34, 645976), (68, 322988), (136, 161494), (272, 80747)]