21389952

素因数分解:

$2^7\times 3^1\times {\mathrm{53}}^1\times {\mathrm{1051}}^1$

素因数の和:1121

約数の個数: 64

約数和(自身を含む): 57944160

約数和(自身を除く): 36554208

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 53, 64, 96, 106, 128, 159, 192, 212, 318, 384, 424, 636, 848, 1051, 1272, 1696, 2102, 2544, 3153, 3392, 4204, 5088, 6306, 6784, 8408, 10176, 12612, 16816, 20352, 25224, 33632, 50448, 55703, 67264, 100896, 111406, 134528, 167109, 201792, 222812, 334218, 403584, 445624, 668436, 891248, 1336872, 1782496, 2673744, 3564992, 5347488, 7129984, 10694976, 21389952]

約数ペア:

[(1, 21389952), (2, 10694976), (3, 7129984), (4, 5347488), (6, 3564992), (8, 2673744), (12, 1782496), (16, 1336872), (24, 891248), (32, 668436), (48, 445624), (53, 403584), (64, 334218), (96, 222812), (106, 201792), (128, 167109), (159, 134528), (192, 111406), (212, 100896), (318, 67264), (384, 55703), (424, 50448), (636, 33632), (848, 25224), (1051, 20352), (1272, 16816), (1696, 12612), (2102, 10176), (2544, 8408), (3153, 6784), (3392, 6306), (4204, 5088)]