21783664

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^2\times {\mathrm{673}}^1$

素因数の和:722

約数の個数: 60

約数和(自身を含む): 51315664

約数和(自身を除く): 29532000

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 289, 476, 578, 673, 952, 1156, 1346, 1904, 2023, 2312, 2692, 4046, 4624, 4711, 5384, 8092, 9422, 10768, 11441, 16184, 18844, 22882, 32368, 37688, 45764, 75376, 80087, 91528, 160174, 183056, 194497, 320348, 388994, 640696, 777988, 1281392, 1361479, 1555976, 2722958, 3111952, 5445916, 10891832, 21783664]

約数ペア:

[(1, 21783664), (2, 10891832), (4, 5445916), (7, 3111952), (8, 2722958), (14, 1555976), (16, 1361479), (17, 1281392), (28, 777988), (34, 640696), (56, 388994), (68, 320348), (112, 194497), (119, 183056), (136, 160174), (238, 91528), (272, 80087), (289, 75376), (476, 45764), (578, 37688), (673, 32368), (952, 22882), (1156, 18844), (1346, 16184), (1904, 11441), (2023, 10768), (2312, 9422), (2692, 8092), (4046, 5384), (4624, 4711)]