19768364

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 44988048

約数和(自身を除く): 25219684

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 53, 77, 98, 106, 154, 173, 196, 212, 308, 346, 371, 539, 583, 692, 742, 1078, 1166, 1211, 1484, 1903, 2156, 2332, 2422, 2597, 3806, 4081, 4844, 5194, 7612, 8162, 8477, 9169, 10388, 13321, 16324, 16954, 18338, 26642, 28567, 33908, 36676, 53284, 57134, 64183, 93247, 100859, 114268, 128366, 186494, 201718, 256732, 372988, 403436, 449281, 706013, 898562, 1412026, 1797124, 2824052, 4942091, 9884182, 19768364]

約数ペア:

[(1, 19768364), (2, 9884182), (4, 4942091), (7, 2824052), (11, 1797124), (14, 1412026), (22, 898562), (28, 706013), (44, 449281), (49, 403436), (53, 372988), (77, 256732), (98, 201718), (106, 186494), (154, 128366), (173, 114268), (196, 100859), (212, 93247), (308, 64183), (346, 57134), (371, 53284), (539, 36676), (583, 33908), (692, 28567), (742, 26642), (1078, 18338), (1166, 16954), (1211, 16324), (1484, 13321), (1903, 10388), (2156, 9169), (2332, 8477), (2422, 8162), (2597, 7612), (3806, 5194), (4081, 4844)]