21570248

素因数分解:

$2^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{5749}}^1$

素因数の和:5829

約数の個数: 32

約数和(自身を含む): 46920000

約数和(自身を除く): 25349752

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 67, 134, 268, 469, 536, 938, 1876, 3752, 5749, 11498, 22996, 40243, 45992, 80486, 160972, 321944, 385183, 770366, 1540732, 2696281, 3081464, 5392562, 10785124, 21570248]

約数ペア:

[(1, 21570248), (2, 10785124), (4, 5392562), (7, 3081464), (8, 2696281), (14, 1540732), (28, 770366), (56, 385183), (67, 321944), (134, 160972), (268, 80486), (469, 45992), (536, 40243), (938, 22996), (1876, 11498), (3752, 5749)]