21255332

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{14323}}^1$

素因数の和:14387

約数の個数: 24

約数和(自身を含む): 43315776

約数和(自身を除く): 22060444

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 14323, 28646, 57292, 100261, 200522, 401044, 759119, 1518238, 3036476, 5313833, 10627666, 21255332]

約数ペア:

[(1, 21255332), (2, 10627666), (4, 5313833), (7, 3036476), (14, 1518238), (28, 759119), (53, 401044), (106, 200522), (212, 100261), (371, 57292), (742, 28646), (1484, 14323)]