21347118

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{647}}^1$

素因数の和:718

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 30907602

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 47, 54, 78, 94, 117, 141, 234, 282, 351, 423, 611, 647, 702, 846, 1222, 1269, 1294, 1833, 1941, 2538, 3666, 3882, 5499, 5823, 8411, 10998, 11646, 16497, 16822, 17469, 25233, 30409, 32994, 34938, 50466, 60818, 75699, 91227, 151398, 182454, 227097, 273681, 395317, 454194, 547362, 790634, 821043, 1185951, 1642086, 2371902, 3557853, 7115706, 10673559, 21347118]

約数ペア:

[(1, 21347118), (2, 10673559), (3, 7115706), (6, 3557853), (9, 2371902), (13, 1642086), (18, 1185951), (26, 821043), (27, 790634), (39, 547362), (47, 454194), (54, 395317), (78, 273681), (94, 227097), (117, 182454), (141, 151398), (234, 91227), (282, 75699), (351, 60818), (423, 50466), (611, 34938), (647, 32994), (702, 30409), (846, 25233), (1222, 17469), (1269, 16822), (1294, 16497), (1833, 11646), (1941, 10998), (2538, 8411), (3666, 5823), (3882, 5499)]