21307470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{823}}^1\times {\mathrm{863}}^1$

素因数の和:1696

約数の個数: 32

約数和(自身を含む): 51259392

約数和(自身を除く): 29951922

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 823, 863, 1646, 1726, 2469, 2589, 4115, 4315, 4938, 5178, 8230, 8630, 12345, 12945, 24690, 25890, 710249, 1420498, 2130747, 3551245, 4261494, 7102490, 10653735, 21307470]

約数ペア:

[(1, 21307470), (2, 10653735), (3, 7102490), (5, 4261494), (6, 3551245), (10, 2130747), (15, 1420498), (30, 710249), (823, 25890), (863, 24690), (1646, 12945), (1726, 12345), (2469, 8630), (2589, 8230), (4115, 5178), (4315, 4938)]