18939105

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1303}}^1$

素因数の和:1350

約数の個数: 48

約数和(自身を含む): 36616320

約数和(自身を除く): 17677215

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 85, 95, 153, 171, 255, 285, 323, 765, 855, 969, 1303, 1615, 2907, 3909, 4845, 6515, 11727, 14535, 19545, 22151, 24757, 58635, 66453, 74271, 110755, 123785, 199359, 222813, 332265, 371355, 420869, 996795, 1114065, 1262607, 2104345, 3787821, 6313035, 18939105]

約数ペア:

[(1, 18939105), (3, 6313035), (5, 3787821), (9, 2104345), (15, 1262607), (17, 1114065), (19, 996795), (45, 420869), (51, 371355), (57, 332265), (85, 222813), (95, 199359), (153, 123785), (171, 110755), (255, 74271), (285, 66453), (323, 58635), (765, 24757), (855, 22151), (969, 19545), (1303, 14535), (1615, 11727), (2907, 6515), (3909, 4845)]