21376215

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{859}}^1$

素因数の和:956

約数の個数: 48

約数和(自身を含む): 42931200

約数和(自身を除く): 21554985

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 79, 105, 237, 315, 395, 553, 711, 859, 1185, 1659, 2577, 2765, 3555, 4295, 4977, 6013, 7731, 8295, 12885, 18039, 24885, 30065, 38655, 54117, 67861, 90195, 203583, 270585, 339305, 475027, 610749, 1017915, 1425081, 2375135, 3053745, 4275243, 7125405, 21376215]

約数ペア:

[(1, 21376215), (3, 7125405), (5, 4275243), (7, 3053745), (9, 2375135), (15, 1425081), (21, 1017915), (35, 610749), (45, 475027), (63, 339305), (79, 270585), (105, 203583), (237, 90195), (315, 67861), (395, 54117), (553, 38655), (711, 30065), (859, 24885), (1185, 18039), (1659, 12885), (2577, 8295), (2765, 7731), (3555, 6013), (4295, 4977)]