21131268792

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{1993}}^1\times {\mathrm{14251}}^1$

素因数の和:16284

約数の個数: 64

約数和(自身を含む): 54563496960

約数和(自身を除く): 33432228168

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 124, 186, 248, 372, 744, 1993, 3986, 5979, 7972, 11958, 14251, 15944, 23916, 28502, 42753, 47832, 57004, 61783, 85506, 114008, 123566, 171012, 185349, 247132, 342024, 370698, 441781, 494264, 741396, 883562, 1325343, 1482792, 1767124, 2650686, 3534248, 5301372, 10602744, 28402243, 56804486, 85206729, 113608972, 170413458, 227217944, 340826916, 681653832, 880469533, 1760939066, 2641408599, 3521878132, 5282817198, 7043756264, 10565634396, 21131268792]

約数ペア:

[(1, 21131268792), (2, 10565634396), (3, 7043756264), (4, 5282817198), (6, 3521878132), (8, 2641408599), (12, 1760939066), (24, 880469533), (31, 681653832), (62, 340826916), (93, 227217944), (124, 170413458), (186, 113608972), (248, 85206729), (372, 56804486), (744, 28402243), (1993, 10602744), (3986, 5301372), (5979, 3534248), (7972, 2650686), (11958, 1767124), (14251, 1482792), (15944, 1325343), (23916, 883562), (28502, 741396), (42753, 494264), (47832, 441781), (57004, 370698), (61783, 342024), (85506, 247132), (114008, 185349), (123566, 171012)]