21337488

素因数分解:

$2^4\times 3^2\times {\mathrm{71}}^1\times {\mathrm{2087}}^1$

素因数の和:2172

約数の個数: 60

約数和(自身を含む): 60585408

約数和(自身を除く): 39247920

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 71, 72, 142, 144, 213, 284, 426, 568, 639, 852, 1136, 1278, 1704, 2087, 2556, 3408, 4174, 5112, 6261, 8348, 10224, 12522, 16696, 18783, 25044, 33392, 37566, 50088, 75132, 100176, 148177, 150264, 296354, 300528, 444531, 592708, 889062, 1185416, 1333593, 1778124, 2370832, 2667186, 3556248, 5334372, 7112496, 10668744, 21337488]

約数ペア:

[(1, 21337488), (2, 10668744), (3, 7112496), (4, 5334372), (6, 3556248), (8, 2667186), (9, 2370832), (12, 1778124), (16, 1333593), (18, 1185416), (24, 889062), (36, 592708), (48, 444531), (71, 300528), (72, 296354), (142, 150264), (144, 148177), (213, 100176), (284, 75132), (426, 50088), (568, 37566), (639, 33392), (852, 25044), (1136, 18783), (1278, 16696), (1704, 12522), (2087, 10224), (2556, 8348), (3408, 6261), (4174, 5112)]