21364785

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{619}}^1$

素因数の和:702

約数の個数: 48

約数和(自身を含む): 40622400

約数和(自身を除く): 19257615

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 59, 65, 117, 177, 195, 295, 531, 585, 619, 767, 885, 1857, 2301, 2655, 3095, 3835, 5571, 6903, 8047, 9285, 11505, 24141, 27855, 34515, 36521, 40235, 72423, 109563, 120705, 182605, 328689, 362115, 474773, 547815, 1424319, 1643445, 2373865, 4272957, 7121595, 21364785]

約数ペア:

[(1, 21364785), (3, 7121595), (5, 4272957), (9, 2373865), (13, 1643445), (15, 1424319), (39, 547815), (45, 474773), (59, 362115), (65, 328689), (117, 182605), (177, 120705), (195, 109563), (295, 72423), (531, 40235), (585, 36521), (619, 34515), (767, 27855), (885, 24141), (1857, 11505), (2301, 9285), (2655, 8047), (3095, 6903), (3835, 5571)]