21047530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{769}}^1$

素因数の和:823

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 26852630

約数列:

[1, 2, 5, 7, 10, 14, 17, 23, 34, 35, 46, 70, 85, 115, 119, 161, 170, 230, 238, 322, 391, 595, 769, 782, 805, 1190, 1538, 1610, 1955, 2737, 3845, 3910, 5383, 5474, 7690, 10766, 13073, 13685, 17687, 26146, 26915, 27370, 35374, 53830, 65365, 88435, 91511, 123809, 130730, 176870, 183022, 247618, 300679, 457555, 601358, 619045, 915110, 1238090, 1503395, 2104753, 3006790, 4209506, 10523765, 21047530]

約数ペア:

[(1, 21047530), (2, 10523765), (5, 4209506), (7, 3006790), (10, 2104753), (14, 1503395), (17, 1238090), (23, 915110), (34, 619045), (35, 601358), (46, 457555), (70, 300679), (85, 247618), (115, 183022), (119, 176870), (161, 130730), (170, 123809), (230, 91511), (238, 88435), (322, 65365), (391, 53830), (595, 35374), (769, 27370), (782, 26915), (805, 26146), (1190, 17687), (1538, 13685), (1610, 13073), (1955, 10766), (2737, 7690), (3845, 5474), (3910, 5383)]