20919787702

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{821}}^1\times {\mathrm{1297}}^1$

素因数の和:2197

約数の個数: 64

約数和(自身を含む): 36873999360

約数和(自身を除く): 15954211658

約数列:

[1, 2, 11, 19, 22, 38, 47, 94, 209, 418, 517, 821, 893, 1034, 1297, 1642, 1786, 2594, 9031, 9823, 14267, 15599, 18062, 19646, 24643, 28534, 31198, 38587, 49286, 60959, 77174, 121918, 171589, 271073, 343178, 424457, 542146, 670549, 733153, 848914, 1064837, 1158221, 1341098, 1466306, 2129674, 2316442, 8064683, 11713207, 12740431, 16129366, 20231903, 23426414, 25480862, 40463806, 50047339, 100094678, 222550933, 445101866, 550520729, 950899441, 1101041458, 1901798882, 10459893851, 20919787702]

約数ペア:

[(1, 20919787702), (2, 10459893851), (11, 1901798882), (19, 1101041458), (22, 950899441), (38, 550520729), (47, 445101866), (94, 222550933), (209, 100094678), (418, 50047339), (517, 40463806), (821, 25480862), (893, 23426414), (1034, 20231903), (1297, 16129366), (1642, 12740431), (1786, 11713207), (2594, 8064683), (9031, 2316442), (9823, 2129674), (14267, 1466306), (15599, 1341098), (18062, 1158221), (19646, 1064837), (24643, 848914), (28534, 733153), (31198, 670549), (38587, 542146), (49286, 424457), (60959, 343178), (77174, 271073), (121918, 171589)]