21490416

素因数分解:

$2^4\times 3^2\times {\mathrm{149239}}^1$

素因数の和:149253

約数の個数: 30

約数和(自身を含む): 60143720

約数和(自身を除く): 38653304

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 149239, 298478, 447717, 596956, 895434, 1193912, 1343151, 1790868, 2387824, 2686302, 3581736, 5372604, 7163472, 10745208, 21490416]

約数ペア:

[(1, 21490416), (2, 10745208), (3, 7163472), (4, 5372604), (6, 3581736), (8, 2686302), (9, 2387824), (12, 1790868), (16, 1343151), (18, 1193912), (24, 895434), (36, 596956), (48, 447717), (72, 298478), (144, 149239)]