21037900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16183}}^1$

素因数の和:16210

約数の個数: 36

約数和(自身を含む): 49166992

約数和(自身を除く): 28129092

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16183, 32366, 64732, 80915, 161830, 210379, 323660, 404575, 420758, 809150, 841516, 1051895, 1618300, 2103790, 4207580, 5259475, 10518950, 21037900]

約数ペア:

[(1, 21037900), (2, 10518950), (4, 5259475), (5, 4207580), (10, 2103790), (13, 1618300), (20, 1051895), (25, 841516), (26, 809150), (50, 420758), (52, 404575), (65, 323660), (100, 210379), (130, 161830), (260, 80915), (325, 64732), (650, 32366), (1300, 16183)]