20971132

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3389}}^1$

素因数の和:3430

約数の個数: 48

約数和(自身を含む): 47839680

約数和(自身を除く): 26868548

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 182, 221, 238, 364, 442, 476, 884, 1547, 3094, 3389, 6188, 6778, 13556, 23723, 44057, 47446, 57613, 88114, 94892, 115226, 176228, 230452, 308399, 403291, 616798, 748969, 806582, 1233596, 1497938, 1613164, 2995876, 5242783, 10485566, 20971132]

約数ペア:

[(1, 20971132), (2, 10485566), (4, 5242783), (7, 2995876), (13, 1613164), (14, 1497938), (17, 1233596), (26, 806582), (28, 748969), (34, 616798), (52, 403291), (68, 308399), (91, 230452), (119, 176228), (182, 115226), (221, 94892), (238, 88114), (364, 57613), (442, 47446), (476, 44057), (884, 23723), (1547, 13556), (3094, 6778), (3389, 6188)]