21129732

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:210

約数の個数: 108

約数和(自身を含む): 60750144

約数和(自身を除く): 39620412

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 23, 26, 36, 39, 46, 52, 69, 78, 92, 117, 138, 151, 156, 169, 207, 234, 276, 299, 302, 338, 414, 453, 468, 507, 598, 604, 676, 828, 897, 906, 1014, 1196, 1359, 1521, 1794, 1812, 1963, 2028, 2691, 2718, 3042, 3473, 3588, 3887, 3926, 5382, 5436, 5889, 6084, 6946, 7774, 7852, 10419, 10764, 11661, 11778, 13892, 15548, 17667, 20838, 23322, 23556, 25519, 31257, 34983, 35334, 41676, 45149, 46644, 51038, 62514, 69966, 70668, 76557, 90298, 102076, 125028, 135447, 139932, 153114, 180596, 229671, 270894, 306228, 406341, 459342, 541788, 586937, 812682, 918684, 1173874, 1625364, 1760811, 2347748, 3521622, 5282433, 7043244, 10564866, 21129732]

約数ペア:

[(1, 21129732), (2, 10564866), (3, 7043244), (4, 5282433), (6, 3521622), (9, 2347748), (12, 1760811), (13, 1625364), (18, 1173874), (23, 918684), (26, 812682), (36, 586937), (39, 541788), (46, 459342), (52, 406341), (69, 306228), (78, 270894), (92, 229671), (117, 180596), (138, 153114), (151, 139932), (156, 135447), (169, 125028), (207, 102076), (234, 90298), (276, 76557), (299, 70668), (302, 69966), (338, 62514), (414, 51038), (453, 46644), (468, 45149), (507, 41676), (598, 35334), (604, 34983), (676, 31257), (828, 25519), (897, 23556), (906, 23322), (1014, 20838), (1196, 17667), (1359, 15548), (1521, 13892), (1794, 11778), (1812, 11661), (1963, 10764), (2028, 10419), (2691, 7852), (2718, 7774), (3042, 6946), (3473, 6084), (3588, 5889), (3887, 5436), (3926, 5382)]