21418128

素因数分解:

$2^4\times 3^3\times {\mathrm{43}}^1\times {\mathrm{1153}}^1$

素因数の和:1213

約数の個数: 80

約数和(自身を含む): 62962240

約数和(自身を除く): 41544112

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 43, 48, 54, 72, 86, 108, 129, 144, 172, 216, 258, 344, 387, 432, 516, 688, 774, 1032, 1153, 1161, 1548, 2064, 2306, 2322, 3096, 3459, 4612, 4644, 6192, 6918, 9224, 9288, 10377, 13836, 18448, 18576, 20754, 27672, 31131, 41508, 49579, 55344, 62262, 83016, 99158, 124524, 148737, 166032, 198316, 249048, 297474, 396632, 446211, 498096, 594948, 793264, 892422, 1189896, 1338633, 1784844, 2379792, 2677266, 3569688, 5354532, 7139376, 10709064, 21418128]

約数ペア:

[(1, 21418128), (2, 10709064), (3, 7139376), (4, 5354532), (6, 3569688), (8, 2677266), (9, 2379792), (12, 1784844), (16, 1338633), (18, 1189896), (24, 892422), (27, 793264), (36, 594948), (43, 498096), (48, 446211), (54, 396632), (72, 297474), (86, 249048), (108, 198316), (129, 166032), (144, 148737), (172, 124524), (216, 99158), (258, 83016), (344, 62262), (387, 55344), (432, 49579), (516, 41508), (688, 31131), (774, 27672), (1032, 20754), (1153, 18576), (1161, 18448), (1548, 13836), (2064, 10377), (2306, 9288), (2322, 9224), (3096, 6918), (3459, 6192), (4612, 4644)]