19819888

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{5927}}^1$

素因数の和:5965

約数の個数: 40

約数和(自身を含む): 44104320

約数和(自身を除く): 24284432

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 5927, 11854, 23708, 47416, 65197, 94832, 112613, 130394, 225226, 260788, 450452, 521576, 900904, 1043152, 1238743, 1801808, 2477486, 4954972, 9909944, 19819888]

約数ペア:

[(1, 19819888), (2, 9909944), (4, 4954972), (8, 2477486), (11, 1801808), (16, 1238743), (19, 1043152), (22, 900904), (38, 521576), (44, 450452), (76, 260788), (88, 225226), (152, 130394), (176, 112613), (209, 94832), (304, 65197), (418, 47416), (836, 23708), (1672, 11854), (3344, 5927)]