19745418

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{541}}^1$

素因数の和:643

約数の個数: 64

約数和(自身を含む): 49950720

約数和(自身を除く): 30205302

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 79, 154, 158, 231, 237, 462, 474, 541, 553, 869, 1082, 1106, 1623, 1659, 1738, 2607, 3246, 3318, 3787, 5214, 5951, 6083, 7574, 11361, 11902, 12166, 17853, 18249, 22722, 35706, 36498, 41657, 42739, 83314, 85478, 124971, 128217, 249942, 256434, 299173, 470129, 598346, 897519, 940258, 1410387, 1795038, 2820774, 3290903, 6581806, 9872709, 19745418]

約数ペア:

[(1, 19745418), (2, 9872709), (3, 6581806), (6, 3290903), (7, 2820774), (11, 1795038), (14, 1410387), (21, 940258), (22, 897519), (33, 598346), (42, 470129), (66, 299173), (77, 256434), (79, 249942), (154, 128217), (158, 124971), (231, 85478), (237, 83314), (462, 42739), (474, 41657), (541, 36498), (553, 35706), (869, 22722), (1082, 18249), (1106, 17853), (1623, 12166), (1659, 11902), (1738, 11361), (2607, 7574), (3246, 6083), (3318, 5951), (3787, 5214)]