21130189641

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{156593}}^1$

素因数の和:156686

約数の個数: 48

約数和(自身を含む): 35177276160

約数和(自身を除く): 14047086519

約数列:

[1, 3, 9, 11, 29, 33, 47, 87, 99, 141, 261, 319, 423, 517, 957, 1363, 1551, 2871, 4089, 4653, 12267, 14993, 44979, 134937, 156593, 469779, 1409337, 1722523, 4541197, 5167569, 7359871, 13623591, 15502707, 22079613, 40870773, 49953167, 66238839, 80958581, 149859501, 213436259, 242875743, 449578503, 640308777, 728627229, 1920926331, 2347798849, 7043396547, 21130189641]

約数ペア:

[(1, 21130189641), (3, 7043396547), (9, 2347798849), (11, 1920926331), (29, 728627229), (33, 640308777), (47, 449578503), (87, 242875743), (99, 213436259), (141, 149859501), (261, 80958581), (319, 66238839), (423, 49953167), (517, 40870773), (957, 22079613), (1363, 15502707), (1551, 13623591), (2871, 7359871), (4089, 5167569), (4653, 4541197), (12267, 1722523), (14993, 1409337), (44979, 469779), (134937, 156593)]