20907328

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{1933}}^1$

素因数の和:1971

約数の個数: 42

約数和(自身を含む): 44948094

約数和(自身を除く): 24040766

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 169, 208, 338, 416, 676, 832, 1352, 1933, 2704, 3866, 5408, 7732, 10816, 15464, 25129, 30928, 50258, 61856, 100516, 123712, 201032, 326677, 402064, 653354, 804128, 1306708, 1608256, 2613416, 5226832, 10453664, 20907328]

約数ペア:

[(1, 20907328), (2, 10453664), (4, 5226832), (8, 2613416), (13, 1608256), (16, 1306708), (26, 804128), (32, 653354), (52, 402064), (64, 326677), (104, 201032), (169, 123712), (208, 100516), (338, 61856), (416, 50258), (676, 30928), (832, 25129), (1352, 15464), (1933, 10816), (2704, 7732), (3866, 5408)]