21136214128

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{98297}}^1$

素因数の和:98545

約数の個数: 40

約数和(自身を含む): 41686215840

約数和(自身を除く): 20550001712

約数列:

[1, 2, 4, 8, 16, 89, 151, 178, 302, 356, 604, 712, 1208, 1424, 2416, 13439, 26878, 53756, 98297, 107512, 196594, 215024, 393188, 786376, 1572752, 8748433, 14842847, 17496866, 29685694, 34993732, 59371388, 69987464, 118742776, 139974928, 237485552, 1321013383, 2642026766, 5284053532, 10568107064, 21136214128]

約数ペア:

[(1, 21136214128), (2, 10568107064), (4, 5284053532), (8, 2642026766), (16, 1321013383), (89, 237485552), (151, 139974928), (178, 118742776), (302, 69987464), (356, 59371388), (604, 34993732), (712, 29685694), (1208, 17496866), (1424, 14842847), (2416, 8748433), (13439, 1572752), (26878, 786376), (53756, 393188), (98297, 215024), (107512, 196594)]