21872368

素因数分解:

$2^4\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1091}}^1$

素因数の和:1285

約数の個数: 40

約数和(自身を含む): 48746880

約数和(自身を除く): 26874512

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 179, 358, 716, 1091, 1253, 1432, 2182, 2506, 2864, 4364, 5012, 7637, 8728, 10024, 15274, 17456, 20048, 30548, 61096, 122192, 195289, 390578, 781156, 1367023, 1562312, 2734046, 3124624, 5468092, 10936184, 21872368]

約数ペア:

[(1, 21872368), (2, 10936184), (4, 5468092), (7, 3124624), (8, 2734046), (14, 1562312), (16, 1367023), (28, 781156), (56, 390578), (112, 195289), (179, 122192), (358, 61096), (716, 30548), (1091, 20048), (1253, 17456), (1432, 15274), (2182, 10024), (2506, 8728), (2864, 7637), (4364, 5012)]