21509520256

素因数分解:

$2^7\times 7^1\times {\mathrm{313}}^1\times {\mathrm{76697}}^1$

素因数の和:77031

約数の個数: 64

約数和(自身を含む): 49129670880

約数和(自身を除く): 27620150624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 313, 448, 626, 896, 1252, 2191, 2504, 4382, 5008, 8764, 10016, 17528, 20032, 35056, 40064, 70112, 76697, 140224, 153394, 280448, 306788, 536879, 613576, 1073758, 1227152, 2147516, 2454304, 4295032, 4908608, 8590064, 9817216, 17180128, 24006161, 34360256, 48012322, 68720512, 96024644, 168043127, 192049288, 336086254, 384098576, 672172508, 768197152, 1344345016, 1536394304, 2688690032, 3072788608, 5377380064, 10754760128, 21509520256]

約数ペア:

[(1, 21509520256), (2, 10754760128), (4, 5377380064), (7, 3072788608), (8, 2688690032), (14, 1536394304), (16, 1344345016), (28, 768197152), (32, 672172508), (56, 384098576), (64, 336086254), (112, 192049288), (128, 168043127), (224, 96024644), (313, 68720512), (448, 48012322), (626, 34360256), (896, 24006161), (1252, 17180128), (2191, 9817216), (2504, 8590064), (4382, 4908608), (5008, 4295032), (8764, 2454304), (10016, 2147516), (17528, 1227152), (20032, 1073758), (35056, 613576), (40064, 536879), (70112, 306788), (76697, 280448), (140224, 153394)]