21209436

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{15923}}^1$

素因数の和:15970

約数の個数: 36

約数和(自身を含む): 55065192

約数和(自身を除く): 33855756

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 444, 666, 1332, 15923, 31846, 47769, 63692, 95538, 143307, 191076, 286614, 573228, 589151, 1178302, 1767453, 2356604, 3534906, 5302359, 7069812, 10604718, 21209436]

約数ペア:

[(1, 21209436), (2, 10604718), (3, 7069812), (4, 5302359), (6, 3534906), (9, 2356604), (12, 1767453), (18, 1178302), (36, 589151), (37, 573228), (74, 286614), (111, 191076), (148, 143307), (222, 95538), (333, 63692), (444, 47769), (666, 31846), (1332, 15923)]