21130816

素因数分解:

$2^6\times 7^1\times {\mathrm{101}}^1\times {\mathrm{467}}^1$

素因数の和:587

約数の個数: 56

約数和(自身を含む): 48499776

約数和(自身を除く): 27368960

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 101, 112, 202, 224, 404, 448, 467, 707, 808, 934, 1414, 1616, 1868, 2828, 3232, 3269, 3736, 5656, 6464, 6538, 7472, 11312, 13076, 14944, 22624, 26152, 29888, 45248, 47167, 52304, 94334, 104608, 188668, 209216, 330169, 377336, 660338, 754672, 1320676, 1509344, 2641352, 3018688, 5282704, 10565408, 21130816]

約数ペア:

[(1, 21130816), (2, 10565408), (4, 5282704), (7, 3018688), (8, 2641352), (14, 1509344), (16, 1320676), (28, 754672), (32, 660338), (56, 377336), (64, 330169), (101, 209216), (112, 188668), (202, 104608), (224, 94334), (404, 52304), (448, 47167), (467, 45248), (707, 29888), (808, 26152), (934, 22624), (1414, 14944), (1616, 13076), (1868, 11312), (2828, 7472), (3232, 6538), (3269, 6464), (3736, 5656)]