21426015

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5783}}^1$

素因数の和:5823

約数の個数: 32

約数和(自身を含む): 38868480

約数和(自身を除く): 17442465

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 195, 247, 285, 741, 1235, 3705, 5783, 17349, 28915, 75179, 86745, 109877, 225537, 329631, 375895, 549385, 1127685, 1428401, 1648155, 4285203, 7142005, 21426015]

約数ペア:

[(1, 21426015), (3, 7142005), (5, 4285203), (13, 1648155), (15, 1428401), (19, 1127685), (39, 549385), (57, 375895), (65, 329631), (95, 225537), (195, 109877), (247, 86745), (285, 75179), (741, 28915), (1235, 17349), (3705, 5783)]