21095035

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:116

約数の個数: 48

約数和(自身を含む): 30723840

約数和(自身を除く): 9628805

約数列:

[1, 5, 13, 19, 29, 31, 65, 95, 145, 155, 247, 361, 377, 403, 551, 589, 899, 1235, 1805, 1885, 2015, 2755, 2945, 4495, 4693, 7163, 7657, 10469, 11191, 11687, 17081, 23465, 35815, 38285, 52345, 55955, 58435, 85405, 136097, 145483, 222053, 324539, 680485, 727415, 1110265, 1622695, 4219007, 21095035]

約数ペア:

[(1, 21095035), (5, 4219007), (13, 1622695), (19, 1110265), (29, 727415), (31, 680485), (65, 324539), (95, 222053), (145, 145483), (155, 136097), (247, 85405), (361, 58435), (377, 55955), (403, 52345), (551, 38285), (589, 35815), (899, 23465), (1235, 17081), (1805, 11687), (1885, 11191), (2015, 10469), (2755, 7657), (2945, 7163), (4495, 4693)]