21182865680

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11512427}}^1$

素因数の和:11512463

約数の個数: 40

約数和(自身を含む): 51391478592

約数和(自身を除く): 30208612912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11512427, 23024854, 46049708, 57562135, 92099416, 115124270, 184198832, 230248540, 264785821, 460497080, 529571642, 920994160, 1059143284, 1323929105, 2118286568, 2647858210, 4236573136, 5295716420, 10591432840, 21182865680]

約数ペア:

[(1, 21182865680), (2, 10591432840), (4, 5295716420), (5, 4236573136), (8, 2647858210), (10, 2118286568), (16, 1323929105), (20, 1059143284), (23, 920994160), (40, 529571642), (46, 460497080), (80, 264785821), (92, 230248540), (115, 184198832), (184, 115124270), (230, 92099416), (368, 57562135), (460, 46049708), (920, 23024854), (1840, 11512427)]