21241485

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 39115440

約数和(自身を除く): 17873955

約数列:

[1, 3, 5, 9, 15, 29, 41, 45, 87, 123, 145, 205, 261, 369, 397, 435, 615, 1189, 1191, 1305, 1845, 1985, 3567, 3573, 5945, 5955, 10701, 11513, 16277, 17835, 17865, 34539, 48831, 53505, 57565, 81385, 103617, 146493, 172695, 244155, 472033, 518085, 732465, 1416099, 2360165, 4248297, 7080495, 21241485]

約数ペア:

[(1, 21241485), (3, 7080495), (5, 4248297), (9, 2360165), (15, 1416099), (29, 732465), (41, 518085), (45, 472033), (87, 244155), (123, 172695), (145, 146493), (205, 103617), (261, 81385), (369, 57565), (397, 53505), (435, 48831), (615, 34539), (1189, 17865), (1191, 17835), (1305, 16277), (1845, 11513), (1985, 10701), (3567, 5955), (3573, 5945)]