21948100

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{1579}}^1$

素因数の和:1732

約数の個数: 36

約数和(自身を含む): 48000400

約数和(自身を除く): 26052300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1390, 1579, 2780, 3158, 3475, 6316, 6950, 7895, 13900, 15790, 31580, 39475, 78950, 157900, 219481, 438962, 877924, 1097405, 2194810, 4389620, 5487025, 10974050, 21948100]

約数ペア:

[(1, 21948100), (2, 10974050), (4, 5487025), (5, 4389620), (10, 2194810), (20, 1097405), (25, 877924), (50, 438962), (100, 219481), (139, 157900), (278, 78950), (556, 39475), (695, 31580), (1390, 15790), (1579, 13900), (2780, 7895), (3158, 6950), (3475, 6316)]