21378266

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1163}}^1$

素因数の和:1286

約数の個数: 32

約数和(自身を含む): 39892608

約数和(自身を除く): 18514342

約数列:

[1, 2, 7, 13, 14, 26, 91, 101, 182, 202, 707, 1163, 1313, 1414, 2326, 2626, 8141, 9191, 15119, 16282, 18382, 30238, 105833, 117463, 211666, 234926, 822241, 1527019, 1644482, 3054038, 10689133, 21378266]

約数ペア:

[(1, 21378266), (2, 10689133), (7, 3054038), (13, 1644482), (14, 1527019), (26, 822241), (91, 234926), (101, 211666), (182, 117463), (202, 105833), (707, 30238), (1163, 18382), (1313, 16282), (1414, 15119), (2326, 9191), (2626, 8141)]