20823712

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7151}}^1$

素因数の和:7181

約数の個数: 48

約数和(自身を含む): 50464512

約数和(自身を除く): 29640800

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 7151, 14302, 28604, 50057, 57208, 92963, 100114, 114416, 185926, 200228, 228832, 371852, 400456, 650741, 743704, 800912, 1301482, 1487408, 1601824, 2602964, 2974816, 5205928, 10411856, 20823712]

約数ペア:

[(1, 20823712), (2, 10411856), (4, 5205928), (7, 2974816), (8, 2602964), (13, 1601824), (14, 1487408), (16, 1301482), (26, 800912), (28, 743704), (32, 650741), (52, 400456), (56, 371852), (91, 228832), (104, 200228), (112, 185926), (182, 114416), (208, 100114), (224, 92963), (364, 57208), (416, 50057), (728, 28604), (1456, 14302), (2912, 7151)]