2912121555

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{21821}}^1$

素因数の和:21908

約数の個数: 64

約数和(自身を含む): 5631123456

約数和(自身を除く): 2719001901

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 41, 93, 105, 123, 155, 205, 217, 287, 465, 615, 651, 861, 1085, 1271, 1435, 3255, 3813, 4305, 6355, 8897, 19065, 21821, 26691, 44485, 65463, 109105, 133455, 152747, 327315, 458241, 676451, 763735, 894661, 2029353, 2291205, 2683983, 3382255, 4473305, 4735157, 6262627, 10146765, 13419915, 14205471, 18787881, 23675785, 27734491, 31313135, 71027355, 83203473, 93939405, 138672455, 194141437, 416017365, 582424311, 970707185, 2912121555]

約数ペア:

[(1, 2912121555), (3, 970707185), (5, 582424311), (7, 416017365), (15, 194141437), (21, 138672455), (31, 93939405), (35, 83203473), (41, 71027355), (93, 31313135), (105, 27734491), (123, 23675785), (155, 18787881), (205, 14205471), (217, 13419915), (287, 10146765), (465, 6262627), (615, 4735157), (651, 4473305), (861, 3382255), (1085, 2683983), (1271, 2291205), (1435, 2029353), (3255, 894661), (3813, 763735), (4305, 676451), (6355, 458241), (8897, 327315), (19065, 152747), (21821, 133455), (26691, 109105), (44485, 65463)]