21791268

素因数分解:

$2^2\times 3^7\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:125

約数の個数: 96

約数和(自身を含む): 59512320

約数和(自身を除く): 37721052

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 47, 53, 54, 81, 94, 106, 108, 141, 159, 162, 188, 212, 243, 282, 318, 324, 423, 477, 486, 564, 636, 729, 846, 954, 972, 1269, 1431, 1458, 1692, 1908, 2187, 2491, 2538, 2862, 2916, 3807, 4293, 4374, 4982, 5076, 5724, 7473, 7614, 8586, 8748, 9964, 11421, 12879, 14946, 15228, 17172, 22419, 22842, 25758, 29892, 34263, 38637, 44838, 45684, 51516, 67257, 68526, 77274, 89676, 102789, 115911, 134514, 137052, 154548, 201771, 205578, 231822, 269028, 403542, 411156, 463644, 605313, 807084, 1210626, 1815939, 2421252, 3631878, 5447817, 7263756, 10895634, 21791268]

約数ペア:

[(1, 21791268), (2, 10895634), (3, 7263756), (4, 5447817), (6, 3631878), (9, 2421252), (12, 1815939), (18, 1210626), (27, 807084), (36, 605313), (47, 463644), (53, 411156), (54, 403542), (81, 269028), (94, 231822), (106, 205578), (108, 201771), (141, 154548), (159, 137052), (162, 134514), (188, 115911), (212, 102789), (243, 89676), (282, 77274), (318, 68526), (324, 67257), (423, 51516), (477, 45684), (486, 44838), (564, 38637), (636, 34263), (729, 29892), (846, 25758), (954, 22842), (972, 22419), (1269, 17172), (1431, 15228), (1458, 14946), (1692, 12879), (1908, 11421), (2187, 9964), (2491, 8748), (2538, 8586), (2862, 7614), (2916, 7473), (3807, 5724), (4293, 5076), (4374, 4982)]