21517872

素因数分解:

$2^4\times 3^1\times {\mathrm{61}}^1\times {\mathrm{7349}}^1$

素因数の和:7421

約数の個数: 40

約数和(自身を含む): 56506800

約数和(自身を除く): 34988928

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 61, 122, 183, 244, 366, 488, 732, 976, 1464, 2928, 7349, 14698, 22047, 29396, 44094, 58792, 88188, 117584, 176376, 352752, 448289, 896578, 1344867, 1793156, 2689734, 3586312, 5379468, 7172624, 10758936, 21517872]

約数ペア:

[(1, 21517872), (2, 10758936), (3, 7172624), (4, 5379468), (6, 3586312), (8, 2689734), (12, 1793156), (16, 1344867), (24, 896578), (48, 448289), (61, 352752), (122, 176376), (183, 117584), (244, 88188), (366, 58792), (488, 44094), (732, 29396), (976, 22047), (1464, 14698), (2928, 7349)]