18904072

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{331}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 39740400

約数和(自身を除く): 20836328

約数列:

[1, 2, 4, 8, 11, 22, 44, 59, 88, 118, 121, 236, 242, 331, 472, 484, 649, 662, 968, 1298, 1324, 2596, 2648, 3641, 5192, 7139, 7282, 14278, 14564, 19529, 28556, 29128, 39058, 40051, 57112, 78116, 80102, 156232, 160204, 214819, 320408, 429638, 859276, 1718552, 2363009, 4726018, 9452036, 18904072]

約数ペア:

[(1, 18904072), (2, 9452036), (4, 4726018), (8, 2363009), (11, 1718552), (22, 859276), (44, 429638), (59, 320408), (88, 214819), (118, 160204), (121, 156232), (236, 80102), (242, 78116), (331, 57112), (472, 40051), (484, 39058), (649, 29128), (662, 28556), (968, 19529), (1298, 14564), (1324, 14278), (2596, 7282), (2648, 7139), (3641, 5192)]