21293610

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{769}}^1$

素因数の和:863

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 34589910

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 71, 78, 130, 142, 195, 213, 355, 390, 426, 710, 769, 923, 1065, 1538, 1846, 2130, 2307, 2769, 3845, 4614, 4615, 5538, 7690, 9230, 9997, 11535, 13845, 19994, 23070, 27690, 29991, 49985, 54599, 59982, 99970, 109198, 149955, 163797, 272995, 299910, 327594, 545990, 709787, 818985, 1419574, 1637970, 2129361, 3548935, 4258722, 7097870, 10646805, 21293610]

約数ペア:

[(1, 21293610), (2, 10646805), (3, 7097870), (5, 4258722), (6, 3548935), (10, 2129361), (13, 1637970), (15, 1419574), (26, 818985), (30, 709787), (39, 545990), (65, 327594), (71, 299910), (78, 272995), (130, 163797), (142, 149955), (195, 109198), (213, 99970), (355, 59982), (390, 54599), (426, 49985), (710, 29991), (769, 27690), (923, 23070), (1065, 19994), (1538, 13845), (1846, 11535), (2130, 9997), (2307, 9230), (2769, 7690), (3845, 5538), (4614, 4615)]