21467740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:211

約数の個数: 96

約数和(自身を含む): 55157760

約数和(自身を除く): 33690020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 59, 70, 92, 113, 115, 118, 140, 161, 226, 230, 236, 295, 322, 413, 452, 460, 565, 590, 644, 791, 805, 826, 1130, 1180, 1357, 1582, 1610, 1652, 2065, 2260, 2599, 2714, 3164, 3220, 3955, 4130, 5198, 5428, 6667, 6785, 7910, 8260, 9499, 10396, 12995, 13334, 13570, 15820, 18193, 18998, 25990, 26668, 27140, 33335, 36386, 37996, 46669, 47495, 51980, 66670, 72772, 90965, 93338, 94990, 133340, 153341, 181930, 186676, 189980, 233345, 306682, 363860, 466690, 613364, 766705, 933380, 1073387, 1533410, 2146774, 3066820, 4293548, 5366935, 10733870, 21467740]

約数ペア:

[(1, 21467740), (2, 10733870), (4, 5366935), (5, 4293548), (7, 3066820), (10, 2146774), (14, 1533410), (20, 1073387), (23, 933380), (28, 766705), (35, 613364), (46, 466690), (59, 363860), (70, 306682), (92, 233345), (113, 189980), (115, 186676), (118, 181930), (140, 153341), (161, 133340), (226, 94990), (230, 93338), (236, 90965), (295, 72772), (322, 66670), (413, 51980), (452, 47495), (460, 46669), (565, 37996), (590, 36386), (644, 33335), (791, 27140), (805, 26668), (826, 25990), (1130, 18998), (1180, 18193), (1357, 15820), (1582, 13570), (1610, 13334), (1652, 12995), (2065, 10396), (2260, 9499), (2599, 8260), (2714, 7910), (3164, 6785), (3220, 6667), (3955, 5428), (4130, 5198)]