21375662

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:357

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 19992658

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 79, 98, 154, 158, 251, 502, 539, 553, 869, 1078, 1106, 1738, 1757, 2761, 3514, 3871, 5522, 6083, 7742, 12166, 12299, 19327, 19829, 24598, 38654, 39658, 42581, 85162, 135289, 138803, 218119, 270578, 277606, 436238, 971621, 1526833, 1943242, 3053666, 10687831, 21375662]

約数ペア:

[(1, 21375662), (2, 10687831), (7, 3053666), (11, 1943242), (14, 1526833), (22, 971621), (49, 436238), (77, 277606), (79, 270578), (98, 218119), (154, 138803), (158, 135289), (251, 85162), (502, 42581), (539, 39658), (553, 38654), (869, 24598), (1078, 19829), (1106, 19327), (1738, 12299), (1757, 12166), (2761, 7742), (3514, 6083), (3871, 5522)]