18646884

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{337}}^1$

素因数の和:429

約数の個数: 72

約数和(自身を含む): 49827960

約数和(自身を除く): 31181076

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 53, 58, 87, 106, 116, 159, 174, 212, 261, 318, 337, 348, 477, 522, 636, 674, 954, 1011, 1044, 1348, 1537, 1908, 2022, 3033, 3074, 4044, 4611, 6066, 6148, 9222, 9773, 12132, 13833, 17861, 18444, 19546, 27666, 29319, 35722, 39092, 53583, 55332, 58638, 71444, 87957, 107166, 117276, 160749, 175914, 214332, 321498, 351828, 517969, 642996, 1035938, 1553907, 2071876, 3107814, 4661721, 6215628, 9323442, 18646884]

約数ペア:

[(1, 18646884), (2, 9323442), (3, 6215628), (4, 4661721), (6, 3107814), (9, 2071876), (12, 1553907), (18, 1035938), (29, 642996), (36, 517969), (53, 351828), (58, 321498), (87, 214332), (106, 175914), (116, 160749), (159, 117276), (174, 107166), (212, 87957), (261, 71444), (318, 58638), (337, 55332), (348, 53583), (477, 39092), (522, 35722), (636, 29319), (674, 27666), (954, 19546), (1011, 18444), (1044, 17861), (1348, 13833), (1537, 12132), (1908, 9773), (2022, 9222), (3033, 6148), (3074, 6066), (4044, 4611)]