21461921504

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{929}}^1\times {\mathrm{37997}}^1$

素因数の和:38955

約数の個数: 48

約数和(自身を含む): 44526056400

約数和(自身を除く): 23064134896

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 608, 929, 1858, 3716, 7432, 14864, 17651, 29728, 35302, 37997, 70604, 75994, 141208, 151988, 282416, 303976, 564832, 607952, 721943, 1215904, 1443886, 2887772, 5775544, 11551088, 23102176, 35299213, 70598426, 141196852, 282393704, 564787408, 670685047, 1129574816, 1341370094, 2682740188, 5365480376, 10730960752, 21461921504]

約数ペア:

[(1, 21461921504), (2, 10730960752), (4, 5365480376), (8, 2682740188), (16, 1341370094), (19, 1129574816), (32, 670685047), (38, 564787408), (76, 282393704), (152, 141196852), (304, 70598426), (608, 35299213), (929, 23102176), (1858, 11551088), (3716, 5775544), (7432, 2887772), (14864, 1443886), (17651, 1215904), (29728, 721943), (35302, 607952), (37997, 564832), (70604, 303976), (75994, 282416), (141208, 151988)]