21596540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:411

約数の個数: 96

約数和(自身を含む): 57093120

約数和(自身を除く): 35496580

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 23, 28, 35, 38, 46, 70, 76, 92, 95, 115, 133, 140, 161, 190, 230, 266, 322, 353, 380, 437, 460, 532, 644, 665, 706, 805, 874, 1330, 1412, 1610, 1748, 1765, 2185, 2471, 2660, 3059, 3220, 3530, 4370, 4942, 6118, 6707, 7060, 8119, 8740, 9884, 12236, 12355, 13414, 15295, 16238, 24710, 26828, 30590, 32476, 33535, 40595, 46949, 49420, 56833, 61180, 67070, 81190, 93898, 113666, 134140, 154261, 162380, 187796, 227332, 234745, 284165, 308522, 469490, 568330, 617044, 771305, 938980, 1079827, 1136660, 1542610, 2159654, 3085220, 4319308, 5399135, 10798270, 21596540]

約数ペア:

[(1, 21596540), (2, 10798270), (4, 5399135), (5, 4319308), (7, 3085220), (10, 2159654), (14, 1542610), (19, 1136660), (20, 1079827), (23, 938980), (28, 771305), (35, 617044), (38, 568330), (46, 469490), (70, 308522), (76, 284165), (92, 234745), (95, 227332), (115, 187796), (133, 162380), (140, 154261), (161, 134140), (190, 113666), (230, 93898), (266, 81190), (322, 67070), (353, 61180), (380, 56833), (437, 49420), (460, 46949), (532, 40595), (644, 33535), (665, 32476), (706, 30590), (805, 26828), (874, 24710), (1330, 16238), (1412, 15295), (1610, 13414), (1748, 12355), (1765, 12236), (2185, 9884), (2471, 8740), (2660, 8119), (3059, 7060), (3220, 6707), (3530, 6118), (4370, 4942)]