21074025

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{293}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 40247424

約数和(自身を除く): 19173399

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 137, 175, 293, 411, 525, 685, 879, 959, 1465, 2051, 2055, 2877, 3425, 4395, 4795, 6153, 7325, 10255, 10275, 14385, 21975, 23975, 30765, 40141, 51275, 71925, 120423, 153825, 200705, 280987, 602115, 842961, 1003525, 1404935, 3010575, 4214805, 7024675, 21074025]

約数ペア:

[(1, 21074025), (3, 7024675), (5, 4214805), (7, 3010575), (15, 1404935), (21, 1003525), (25, 842961), (35, 602115), (75, 280987), (105, 200705), (137, 153825), (175, 120423), (293, 71925), (411, 51275), (525, 40141), (685, 30765), (879, 23975), (959, 21975), (1465, 14385), (2051, 10275), (2055, 10255), (2877, 7325), (3425, 6153), (4395, 4795)]