31520944

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21649}}^1$

素因数の和:21677

約数の個数: 40

約数和(自身を含む): 75168800

約数和(自身を除く): 43647856

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 21649, 43298, 86596, 151543, 173192, 281437, 303086, 346384, 562874, 606172, 1125748, 1212344, 1970059, 2251496, 2424688, 3940118, 4502992, 7880236, 15760472, 31520944]

約数ペア:

[(1, 31520944), (2, 15760472), (4, 7880236), (7, 4502992), (8, 3940118), (13, 2424688), (14, 2251496), (16, 1970059), (26, 1212344), (28, 1125748), (52, 606172), (56, 562874), (91, 346384), (104, 303086), (112, 281437), (182, 173192), (208, 151543), (364, 86596), (728, 43298), (1456, 21649)]