21672100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{6991}}^1$

素因数の和:7036

約数の個数: 36

約数和(自身を含む): 48552448

約数和(自身を除く): 26880348

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 6991, 13982, 27964, 34955, 69910, 139820, 174775, 216721, 349550, 433442, 699100, 866884, 1083605, 2167210, 4334420, 5418025, 10836050, 21672100]

約数ペア:

[(1, 21672100), (2, 10836050), (4, 5418025), (5, 4334420), (10, 2167210), (20, 1083605), (25, 866884), (31, 699100), (50, 433442), (62, 349550), (100, 216721), (124, 174775), (155, 139820), (310, 69910), (620, 34955), (775, 27964), (1550, 13982), (3100, 6991)]