21704779420

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{553411}}^1$

素因数の和:553510

約数の個数: 48

約数和(自身を含む): 47695259808

約数和(自身を除く): 25990480388

約数列:

[1, 2, 4, 5, 10, 20, 37, 53, 74, 106, 148, 185, 212, 265, 370, 530, 740, 1060, 1961, 3922, 7844, 9805, 19610, 39220, 553411, 1106822, 2213644, 2767055, 5534110, 11068220, 20476207, 29330783, 40952414, 58661566, 81904828, 102381035, 117323132, 146653915, 204762070, 293307830, 409524140, 586615660, 1085238971, 2170477942, 4340955884, 5426194855, 10852389710, 21704779420]

約数ペア:

[(1, 21704779420), (2, 10852389710), (4, 5426194855), (5, 4340955884), (10, 2170477942), (20, 1085238971), (37, 586615660), (53, 409524140), (74, 293307830), (106, 204762070), (148, 146653915), (185, 117323132), (212, 102381035), (265, 81904828), (370, 58661566), (530, 40952414), (740, 29330783), (1060, 20476207), (1961, 11068220), (3922, 5534110), (7844, 2767055), (9805, 2213644), (19610, 1106822), (39220, 553411)]