21981560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23893}}^1$

素因数の和:23927

約数の個数: 32

約数和(自身を含む): 51611040

約数和(自身を除く): 29629480

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23893, 47786, 95572, 119465, 191144, 238930, 477860, 549539, 955720, 1099078, 2198156, 2747695, 4396312, 5495390, 10990780, 21981560]

約数ペア:

[(1, 21981560), (2, 10990780), (4, 5495390), (5, 4396312), (8, 2747695), (10, 2198156), (20, 1099078), (23, 955720), (40, 549539), (46, 477860), (92, 238930), (115, 191144), (184, 119465), (230, 95572), (460, 47786), (920, 23893)]