21871000

素因数分解:

$2^3\times 5^3\times {\mathrm{21871}}^1$

素因数の和:21892

約数の個数: 32

約数和(自身を含む): 51180480

約数和(自身を除く): 29309480

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 21871, 43742, 87484, 109355, 174968, 218710, 437420, 546775, 874840, 1093550, 2187100, 2733875, 4374200, 5467750, 10935500, 21871000]

約数ペア:

[(1, 21871000), (2, 10935500), (4, 5467750), (5, 4374200), (8, 2733875), (10, 2187100), (20, 1093550), (25, 874840), (40, 546775), (50, 437420), (100, 218710), (125, 174968), (200, 109355), (250, 87484), (500, 43742), (1000, 21871)]