21415485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{541}}^1$

素因数の和:598

約数の個数: 64

約数和(自身を含む): 43706880

約数和(自身を除く): 22291395

約数列:

[1, 3, 5, 7, 13, 15, 21, 29, 35, 39, 65, 87, 91, 105, 145, 195, 203, 273, 377, 435, 455, 541, 609, 1015, 1131, 1365, 1623, 1885, 2639, 2705, 3045, 3787, 5655, 7033, 7917, 8115, 11361, 13195, 15689, 18935, 21099, 35165, 39585, 47067, 49231, 56805, 78445, 105495, 109823, 147693, 203957, 235335, 246155, 329469, 549115, 611871, 738465, 1019785, 1427699, 1647345, 3059355, 4283097, 7138495, 21415485]

約数ペア:

[(1, 21415485), (3, 7138495), (5, 4283097), (7, 3059355), (13, 1647345), (15, 1427699), (21, 1019785), (29, 738465), (35, 611871), (39, 549115), (65, 329469), (87, 246155), (91, 235335), (105, 203957), (145, 147693), (195, 109823), (203, 105495), (273, 78445), (377, 56805), (435, 49231), (455, 47067), (541, 39585), (609, 35165), (1015, 21099), (1131, 18935), (1365, 15689), (1623, 13195), (1885, 11361), (2639, 8115), (2705, 7917), (3045, 7033), (3787, 5655)]