19508008

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{307}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 40582080

約数和(自身を除く): 21074072

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 169, 188, 307, 338, 376, 611, 614, 676, 1222, 1228, 1352, 2444, 2456, 3991, 4888, 7943, 7982, 14429, 15886, 15964, 28858, 31772, 31928, 51883, 57716, 63544, 103766, 115432, 187577, 207532, 375154, 415064, 750308, 1500616, 2438501, 4877002, 9754004, 19508008]

約数ペア:

[(1, 19508008), (2, 9754004), (4, 4877002), (8, 2438501), (13, 1500616), (26, 750308), (47, 415064), (52, 375154), (94, 207532), (104, 187577), (169, 115432), (188, 103766), (307, 63544), (338, 57716), (376, 51883), (611, 31928), (614, 31772), (676, 28858), (1222, 15964), (1228, 15886), (1352, 14429), (2444, 7982), (2456, 7943), (3991, 4888)]