21014779970

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1\times {\mathrm{103567}}^1$

素因数の和:103874

約数の個数: 32

約数和(自身を含む): 38388100608

約数和(自身を除く): 17373320638

約数列:

[1, 2, 5, 10, 103, 197, 206, 394, 515, 985, 1030, 1970, 20291, 40582, 101455, 103567, 202910, 207134, 517835, 1035670, 10667401, 20402699, 21334802, 40805398, 53337005, 102013495, 106674010, 204026990, 2101477997, 4202955994, 10507389985, 21014779970]

約数ペア:

[(1, 21014779970), (2, 10507389985), (5, 4202955994), (10, 2101477997), (103, 204026990), (197, 106674010), (206, 102013495), (394, 53337005), (515, 40805398), (985, 21334802), (1030, 20402699), (1970, 10667401), (20291, 1035670), (40582, 517835), (101455, 207134), (103567, 202910)]