21035196

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6421}}^1$

素因数の和:6451

約数の個数: 72

約数和(自身を含む): 65453024

約数和(自身を除く): 44417828

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 6421, 12842, 19263, 25684, 38526, 44947, 57789, 77052, 83473, 89894, 115578, 134841, 166946, 179788, 231156, 250419, 269682, 333892, 404523, 500838, 539364, 584311, 751257, 809046, 1001676, 1168622, 1502514, 1618092, 1752933, 2337244, 3005028, 3505866, 5258799, 7011732, 10517598, 21035196]

約数ペア:

[(1, 21035196), (2, 10517598), (3, 7011732), (4, 5258799), (6, 3505866), (7, 3005028), (9, 2337244), (12, 1752933), (13, 1618092), (14, 1502514), (18, 1168622), (21, 1001676), (26, 809046), (28, 751257), (36, 584311), (39, 539364), (42, 500838), (52, 404523), (63, 333892), (78, 269682), (84, 250419), (91, 231156), (117, 179788), (126, 166946), (156, 134841), (182, 115578), (234, 89894), (252, 83473), (273, 77052), (364, 57789), (468, 44947), (546, 38526), (819, 25684), (1092, 19263), (1638, 12842), (3276, 6421)]