19712028

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3847}}^1$

素因数の和:3922

約数の個数: 48

約数和(自身を含む): 53441024

約数和(自身を除く): 33728996

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 61, 84, 122, 183, 244, 366, 427, 732, 854, 1281, 1708, 2562, 3847, 5124, 7694, 11541, 15388, 23082, 26929, 46164, 53858, 80787, 107716, 161574, 234667, 323148, 469334, 704001, 938668, 1408002, 1642669, 2816004, 3285338, 4928007, 6570676, 9856014, 19712028]

約数ペア:

[(1, 19712028), (2, 9856014), (3, 6570676), (4, 4928007), (6, 3285338), (7, 2816004), (12, 1642669), (14, 1408002), (21, 938668), (28, 704001), (42, 469334), (61, 323148), (84, 234667), (122, 161574), (183, 107716), (244, 80787), (366, 53858), (427, 46164), (732, 26929), (854, 23082), (1281, 15388), (1708, 11541), (2562, 7694), (3847, 5124)]