21557670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:389

約数の個数: 64

約数和(自身を含む): 54604800

約数和(自身を除く): 33047130

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 157, 199, 230, 314, 345, 398, 471, 597, 690, 785, 942, 995, 1194, 1570, 1990, 2355, 2985, 3611, 4577, 4710, 5970, 7222, 9154, 10833, 13731, 18055, 21666, 22885, 27462, 31243, 36110, 45770, 54165, 62486, 68655, 93729, 108330, 137310, 156215, 187458, 312430, 468645, 718589, 937290, 1437178, 2155767, 3592945, 4311534, 7185890, 10778835, 21557670]

約数ペア:

[(1, 21557670), (2, 10778835), (3, 7185890), (5, 4311534), (6, 3592945), (10, 2155767), (15, 1437178), (23, 937290), (30, 718589), (46, 468645), (69, 312430), (115, 187458), (138, 156215), (157, 137310), (199, 108330), (230, 93729), (314, 68655), (345, 62486), (398, 54165), (471, 45770), (597, 36110), (690, 31243), (785, 27462), (942, 22885), (995, 21666), (1194, 18055), (1570, 13731), (1990, 10833), (2355, 9154), (2985, 7222), (3611, 5970), (4577, 4710)]