18934839

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 15659721

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 89, 99, 231, 267, 307, 623, 693, 801, 921, 979, 1869, 2149, 2763, 2937, 3377, 5607, 6447, 6853, 8811, 10131, 19341, 20559, 23639, 27323, 30393, 61677, 70917, 81969, 191261, 212751, 245907, 300553, 573783, 901659, 1721349, 2103871, 2704977, 6311613, 18934839]

約数ペア:

[(1, 18934839), (3, 6311613), (7, 2704977), (9, 2103871), (11, 1721349), (21, 901659), (33, 573783), (63, 300553), (77, 245907), (89, 212751), (99, 191261), (231, 81969), (267, 70917), (307, 61677), (623, 30393), (693, 27323), (801, 23639), (921, 20559), (979, 19341), (1869, 10131), (2149, 8811), (2763, 6853), (2937, 6447), (3377, 5607)]