19021806

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:345

約数の個数: 48

約数和(自身を含む): 42591744

約数和(自身を除く): 23569938

約数列:

[1, 2, 3, 6, 9, 18, 53, 106, 127, 157, 159, 254, 314, 318, 381, 471, 477, 762, 942, 954, 1143, 1413, 2286, 2826, 6731, 8321, 13462, 16642, 19939, 20193, 24963, 39878, 40386, 49926, 59817, 60579, 74889, 119634, 121158, 149778, 179451, 358902, 1056767, 2113534, 3170301, 6340602, 9510903, 19021806]

約数ペア:

[(1, 19021806), (2, 9510903), (3, 6340602), (6, 3170301), (9, 2113534), (18, 1056767), (53, 358902), (106, 179451), (127, 149778), (157, 121158), (159, 119634), (254, 74889), (314, 60579), (318, 59817), (381, 49926), (471, 40386), (477, 39878), (762, 24963), (942, 20193), (954, 19939), (1143, 16642), (1413, 13462), (2286, 8321), (2826, 6731)]