21940490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 47295360

約数和(自身を除く): 25354870

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 67, 110, 130, 134, 143, 229, 286, 335, 458, 670, 715, 737, 871, 1145, 1430, 1474, 1742, 2290, 2519, 2977, 3685, 4355, 5038, 5954, 7370, 8710, 9581, 12595, 14885, 15343, 19162, 25190, 29770, 30686, 32747, 47905, 65494, 76715, 95810, 153430, 163735, 168773, 199459, 327470, 337546, 398918, 843865, 997295, 1687730, 1994590, 2194049, 4388098, 10970245, 21940490]

約数ペア:

[(1, 21940490), (2, 10970245), (5, 4388098), (10, 2194049), (11, 1994590), (13, 1687730), (22, 997295), (26, 843865), (55, 398918), (65, 337546), (67, 327470), (110, 199459), (130, 168773), (134, 163735), (143, 153430), (229, 95810), (286, 76715), (335, 65494), (458, 47905), (670, 32747), (715, 30686), (737, 29770), (871, 25190), (1145, 19162), (1430, 15343), (1474, 14885), (1742, 12595), (2290, 9581), (2519, 8710), (2977, 7370), (3685, 5954), (4355, 5038)]