21151206

素因数分解:

$2^1\times 3^6\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:272

約数の個数: 56

約数和(自身を含む): 48398040

約数和(自身を除く): 27246834

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 89, 162, 163, 178, 243, 267, 326, 486, 489, 534, 729, 801, 978, 1458, 1467, 1602, 2403, 2934, 4401, 4806, 7209, 8802, 13203, 14418, 14507, 21627, 26406, 29014, 39609, 43254, 43521, 64881, 79218, 87042, 118827, 129762, 130563, 237654, 261126, 391689, 783378, 1175067, 2350134, 3525201, 7050402, 10575603, 21151206]

約数ペア:

[(1, 21151206), (2, 10575603), (3, 7050402), (6, 3525201), (9, 2350134), (18, 1175067), (27, 783378), (54, 391689), (81, 261126), (89, 237654), (162, 130563), (163, 129762), (178, 118827), (243, 87042), (267, 79218), (326, 64881), (486, 43521), (489, 43254), (534, 39609), (729, 29014), (801, 26406), (978, 21627), (1458, 14507), (1467, 14418), (1602, 13203), (2403, 8802), (2934, 7209), (4401, 4806)]