21215064

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{701}}^1$

素因数の和:820

約数の個数: 64

約数和(自身を含む): 57788640

約数和(自身を除く): 36573576

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 97, 104, 156, 194, 291, 312, 388, 582, 701, 776, 1164, 1261, 1402, 2103, 2328, 2522, 2804, 3783, 4206, 5044, 5608, 7566, 8412, 9113, 10088, 15132, 16824, 18226, 27339, 30264, 36452, 54678, 67997, 72904, 109356, 135994, 203991, 218712, 271988, 407982, 543976, 815964, 883961, 1631928, 1767922, 2651883, 3535844, 5303766, 7071688, 10607532, 21215064]

約数ペア:

[(1, 21215064), (2, 10607532), (3, 7071688), (4, 5303766), (6, 3535844), (8, 2651883), (12, 1767922), (13, 1631928), (24, 883961), (26, 815964), (39, 543976), (52, 407982), (78, 271988), (97, 218712), (104, 203991), (156, 135994), (194, 109356), (291, 72904), (312, 67997), (388, 54678), (582, 36452), (701, 30264), (776, 27339), (1164, 18226), (1261, 16824), (1402, 15132), (2103, 10088), (2328, 9113), (2522, 8412), (2804, 7566), (3783, 5608), (4206, 5044)]