256432911

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{27943}}^1$

素因数の和:27995

約数の個数: 32

約数和(自身を含む): 429219840

約数和(自身を除く): 172786929

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 133, 161, 399, 437, 483, 1311, 3059, 9177, 27943, 83829, 195601, 530917, 586803, 642689, 1592751, 1928067, 3716419, 4498823, 11149257, 12211091, 13496469, 36633273, 85477637, 256432911]

約数ペア:

[(1, 256432911), (3, 85477637), (7, 36633273), (19, 13496469), (21, 12211091), (23, 11149257), (57, 4498823), (69, 3716419), (133, 1928067), (161, 1592751), (399, 642689), (437, 586803), (483, 530917), (1311, 195601), (3059, 83829), (9177, 27943)]