21484360

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{18521}}^1$

素因数の和:18561

約数の個数: 32

約数和(自身を含む): 50009400

約数和(自身を除く): 28525040

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 18521, 37042, 74084, 92605, 148168, 185210, 370420, 537109, 740840, 1074218, 2148436, 2685545, 4296872, 5371090, 10742180, 21484360]

約数ペア:

[(1, 21484360), (2, 10742180), (4, 5371090), (5, 4296872), (8, 2685545), (10, 2148436), (20, 1074218), (29, 740840), (40, 537109), (58, 370420), (116, 185210), (145, 148168), (232, 92605), (290, 74084), (580, 37042), (1160, 18521)]