19912524

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 47900160

約数和(自身を除く): 27987636

約数列:

[1, 2, 3, 4, 6, 12, 53, 106, 131, 159, 212, 239, 262, 318, 393, 478, 524, 636, 717, 786, 956, 1434, 1572, 2868, 6943, 12667, 13886, 20829, 25334, 27772, 31309, 38001, 41658, 50668, 62618, 76002, 83316, 93927, 125236, 152004, 187854, 375708, 1659377, 3318754, 4978131, 6637508, 9956262, 19912524]

約数ペア:

[(1, 19912524), (2, 9956262), (3, 6637508), (4, 4978131), (6, 3318754), (12, 1659377), (53, 375708), (106, 187854), (131, 152004), (159, 125236), (212, 93927), (239, 83316), (262, 76002), (318, 62618), (393, 50668), (478, 41658), (524, 38001), (636, 31309), (717, 27772), (786, 25334), (956, 20829), (1434, 13886), (1572, 12667), (2868, 6943)]