21203875

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2203}}^1$

素因数の和:2236

約数の個数: 32

約数和(自身を含む): 33007104

約数和(自身を除く): 11803229

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 125, 175, 275, 385, 875, 1375, 1925, 2203, 9625, 11015, 15421, 24233, 55075, 77105, 121165, 169631, 275375, 385525, 605825, 848155, 1927625, 3029125, 4240775, 21203875]

約数ペア:

[(1, 21203875), (5, 4240775), (7, 3029125), (11, 1927625), (25, 848155), (35, 605825), (55, 385525), (77, 275375), (125, 169631), (175, 121165), (275, 77105), (385, 55075), (875, 24233), (1375, 15421), (1925, 11015), (2203, 9625)]