21206874

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{11821}}^1$

素因数の和:11862

約数の個数: 32

約数和(自身を含む): 47666304

約数和(自身を除く): 26459430

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 299, 598, 897, 1794, 11821, 23642, 35463, 70926, 153673, 271883, 307346, 461019, 543766, 815649, 922038, 1631298, 3534479, 7068958, 10603437, 21206874]

約数ペア:

[(1, 21206874), (2, 10603437), (3, 7068958), (6, 3534479), (13, 1631298), (23, 922038), (26, 815649), (39, 543766), (46, 461019), (69, 307346), (78, 271883), (138, 153673), (299, 70926), (598, 35463), (897, 23642), (1794, 11821)]