21139367050

素因数分解:

$2^1\times 5^2\times {\mathrm{157}}^1\times {\mathrm{419}}^1\times {\mathrm{6427}}^1$

素因数の和:7015

約数の個数: 48

約数和(自身を含む): 39670273440

約数和(自身を除く): 18530906390

約数列:

[1, 2, 5, 10, 25, 50, 157, 314, 419, 785, 838, 1570, 2095, 3925, 4190, 6427, 7850, 10475, 12854, 20950, 32135, 64270, 65783, 131566, 160675, 321350, 328915, 657830, 1009039, 1644575, 2018078, 2692913, 3289150, 5045195, 5385826, 10090390, 13464565, 25225975, 26929130, 50451950, 67322825, 134645650, 422787341, 845574682, 2113936705, 4227873410, 10569683525, 21139367050]

約数ペア:

[(1, 21139367050), (2, 10569683525), (5, 4227873410), (10, 2113936705), (25, 845574682), (50, 422787341), (157, 134645650), (314, 67322825), (419, 50451950), (785, 26929130), (838, 25225975), (1570, 13464565), (2095, 10090390), (3925, 5385826), (4190, 5045195), (6427, 3289150), (7850, 2692913), (10475, 2018078), (12854, 1644575), (20950, 1009039), (32135, 657830), (64270, 328915), (65783, 321350), (131566, 160675)]