21707300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{113}}^2$

素因数の和:257

約数の個数: 54

約数和(自身を含む): 50320998

約数和(自身を除く): 28613698

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 113, 170, 226, 340, 425, 452, 565, 850, 1130, 1700, 1921, 2260, 2825, 3842, 5650, 7684, 9605, 11300, 12769, 19210, 25538, 38420, 48025, 51076, 63845, 96050, 127690, 192100, 217073, 255380, 319225, 434146, 638450, 868292, 1085365, 1276900, 2170730, 4341460, 5426825, 10853650, 21707300]

約数ペア:

[(1, 21707300), (2, 10853650), (4, 5426825), (5, 4341460), (10, 2170730), (17, 1276900), (20, 1085365), (25, 868292), (34, 638450), (50, 434146), (68, 319225), (85, 255380), (100, 217073), (113, 192100), (170, 127690), (226, 96050), (340, 63845), (425, 51076), (452, 48025), (565, 38420), (850, 25538), (1130, 19210), (1700, 12769), (1921, 11300), (2260, 9605), (2825, 7684), (3842, 5650)]