21111776

素因数分解:

$2^5\times 7^1\times {\mathrm{307}}^2$

素因数の和:631

約数の個数: 36

約数和(自身を含む): 47656728

約数和(自身を除く): 26544952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 307, 614, 1228, 2149, 2456, 4298, 4912, 8596, 9824, 17192, 34384, 68768, 94249, 188498, 376996, 659743, 753992, 1319486, 1507984, 2638972, 3015968, 5277944, 10555888, 21111776]

約数ペア:

[(1, 21111776), (2, 10555888), (4, 5277944), (7, 3015968), (8, 2638972), (14, 1507984), (16, 1319486), (28, 753992), (32, 659743), (56, 376996), (112, 188498), (224, 94249), (307, 68768), (614, 34384), (1228, 17192), (2149, 9824), (2456, 8596), (4298, 4912)]