20731034907

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{307}}^1\times {\mathrm{1051}}^1$

素因数の和:1445

約数の個数: 72

約数和(自身を含む): 33613419840

約数和(自身を除く): 12882384933

約数列:

[1, 3, 9, 11, 33, 59, 99, 121, 177, 307, 363, 531, 649, 921, 1051, 1089, 1947, 2763, 3153, 3377, 5841, 7139, 9459, 10131, 11561, 18113, 21417, 30393, 34683, 37147, 54339, 62009, 64251, 104049, 111441, 127171, 163017, 186027, 199243, 322657, 334323, 381513, 558081, 597729, 682099, 967971, 1144539, 1793187, 2046297, 2191673, 2903913, 3549227, 6138891, 6575019, 7503089, 10647681, 19036763, 19725057, 22509267, 31943043, 39041497, 57110289, 67527801, 117124491, 171330867, 209404393, 351373473, 628213179, 1884639537, 2303448323, 6910344969, 20731034907]

約数ペア:

[(1, 20731034907), (3, 6910344969), (9, 2303448323), (11, 1884639537), (33, 628213179), (59, 351373473), (99, 209404393), (121, 171330867), (177, 117124491), (307, 67527801), (363, 57110289), (531, 39041497), (649, 31943043), (921, 22509267), (1051, 19725057), (1089, 19036763), (1947, 10647681), (2763, 7503089), (3153, 6575019), (3377, 6138891), (5841, 3549227), (7139, 2903913), (9459, 2191673), (10131, 2046297), (11561, 1793187), (18113, 1144539), (21417, 967971), (30393, 682099), (34683, 597729), (37147, 558081), (54339, 381513), (62009, 334323), (64251, 322657), (104049, 199243), (111441, 186027), (127171, 163017)]