20915352

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{15289}}^1$

素因数の和:15320

約数の個数: 48

約数和(自身を含む): 59631000

約数和(自身を除く): 38715648

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 456, 684, 1368, 15289, 30578, 45867, 61156, 91734, 122312, 137601, 183468, 275202, 290491, 366936, 550404, 580982, 871473, 1100808, 1161964, 1742946, 2323928, 2614419, 3485892, 5228838, 6971784, 10457676, 20915352]

約数ペア:

[(1, 20915352), (2, 10457676), (3, 6971784), (4, 5228838), (6, 3485892), (8, 2614419), (9, 2323928), (12, 1742946), (18, 1161964), (19, 1100808), (24, 871473), (36, 580982), (38, 550404), (57, 366936), (72, 290491), (76, 275202), (114, 183468), (152, 137601), (171, 122312), (228, 91734), (342, 61156), (456, 45867), (684, 30578), (1368, 15289)]