21789376

素因数分解:

$2^6\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2861}}^1$

素因数の和:2897

約数の個数: 56

約数和(自身を含む): 52340256

約数和(自身を除く): 30550880

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 136, 224, 238, 272, 448, 476, 544, 952, 1088, 1904, 2861, 3808, 5722, 7616, 11444, 20027, 22888, 40054, 45776, 48637, 80108, 91552, 97274, 160216, 183104, 194548, 320432, 340459, 389096, 640864, 680918, 778192, 1281728, 1361836, 1556384, 2723672, 3112768, 5447344, 10894688, 21789376]

約数ペア:

[(1, 21789376), (2, 10894688), (4, 5447344), (7, 3112768), (8, 2723672), (14, 1556384), (16, 1361836), (17, 1281728), (28, 778192), (32, 680918), (34, 640864), (56, 389096), (64, 340459), (68, 320432), (112, 194548), (119, 183104), (136, 160216), (224, 97274), (238, 91552), (272, 80108), (448, 48637), (476, 45776), (544, 40054), (952, 22888), (1088, 20027), (1904, 11444), (2861, 7616), (3808, 5722)]