20571564

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{7757}}^1$

素因数の和:7794

約数の個数: 48

約数和(自身を含む): 54740448

約数和(自身を除く): 34168884

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 51, 52, 68, 78, 102, 156, 204, 221, 442, 663, 884, 1326, 2652, 7757, 15514, 23271, 31028, 46542, 93084, 100841, 131869, 201682, 263738, 302523, 395607, 403364, 527476, 605046, 791214, 1210092, 1582428, 1714297, 3428594, 5142891, 6857188, 10285782, 20571564]

約数ペア:

[(1, 20571564), (2, 10285782), (3, 6857188), (4, 5142891), (6, 3428594), (12, 1714297), (13, 1582428), (17, 1210092), (26, 791214), (34, 605046), (39, 527476), (51, 403364), (52, 395607), (68, 302523), (78, 263738), (102, 201682), (156, 131869), (204, 100841), (221, 93084), (442, 46542), (663, 31028), (884, 23271), (1326, 15514), (2652, 7757)]