21246576

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1$

素因数の和:534

約数の個数: 80

約数和(自身を含む): 59996160

約数和(自身を除く): 38749584

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 79, 104, 156, 158, 208, 237, 312, 316, 431, 474, 624, 632, 862, 948, 1027, 1264, 1293, 1724, 1896, 2054, 2586, 3081, 3448, 3792, 4108, 5172, 5603, 6162, 6896, 8216, 10344, 11206, 12324, 16432, 16809, 20688, 22412, 24648, 33618, 34049, 44824, 49296, 67236, 68098, 89648, 102147, 134472, 136196, 204294, 268944, 272392, 408588, 442637, 544784, 817176, 885274, 1327911, 1634352, 1770548, 2655822, 3541096, 5311644, 7082192, 10623288, 21246576]

約数ペア:

[(1, 21246576), (2, 10623288), (3, 7082192), (4, 5311644), (6, 3541096), (8, 2655822), (12, 1770548), (13, 1634352), (16, 1327911), (24, 885274), (26, 817176), (39, 544784), (48, 442637), (52, 408588), (78, 272392), (79, 268944), (104, 204294), (156, 136196), (158, 134472), (208, 102147), (237, 89648), (312, 68098), (316, 67236), (431, 49296), (474, 44824), (624, 34049), (632, 33618), (862, 24648), (948, 22412), (1027, 20688), (1264, 16809), (1293, 16432), (1724, 12324), (1896, 11206), (2054, 10344), (2586, 8216), (3081, 6896), (3448, 6162), (3792, 5603), (4108, 5172)]