21660342

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{751}}^1$

素因数の和:809

約数の個数: 64

約数和(自身を含む): 51978240

約数和(自身を除く): 30317898

約数列:

[1, 2, 3, 6, 11, 19, 22, 23, 33, 38, 46, 57, 66, 69, 114, 138, 209, 253, 418, 437, 506, 627, 751, 759, 874, 1254, 1311, 1502, 1518, 2253, 2622, 4506, 4807, 8261, 9614, 14269, 14421, 16522, 17273, 24783, 28538, 28842, 34546, 42807, 49566, 51819, 85614, 103638, 156959, 190003, 313918, 328187, 380006, 470877, 570009, 656374, 941754, 984561, 1140018, 1969122, 3610057, 7220114, 10830171, 21660342]

約数ペア:

[(1, 21660342), (2, 10830171), (3, 7220114), (6, 3610057), (11, 1969122), (19, 1140018), (22, 984561), (23, 941754), (33, 656374), (38, 570009), (46, 470877), (57, 380006), (66, 328187), (69, 313918), (114, 190003), (138, 156959), (209, 103638), (253, 85614), (418, 51819), (437, 49566), (506, 42807), (627, 34546), (751, 28842), (759, 28538), (874, 24783), (1254, 17273), (1311, 16522), (1502, 14421), (1518, 14269), (2253, 9614), (2622, 8261), (4506, 4807)]