21284408

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{8237}}^1$

素因数の和:8279

約数の個数: 32

約数和(自身を含む): 44485200

約数和(自身を除く): 23200792

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 8237, 16474, 32948, 65896, 140029, 156503, 280058, 313006, 560116, 626012, 1120232, 1252024, 2660551, 5321102, 10642204, 21284408]

約数ペア:

[(1, 21284408), (2, 10642204), (4, 5321102), (8, 2660551), (17, 1252024), (19, 1120232), (34, 626012), (38, 560116), (68, 313006), (76, 280058), (136, 156503), (152, 140029), (323, 65896), (646, 32948), (1292, 16474), (2584, 8237)]