21301784

素因数分解:

$2^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{4583}}^1$

素因数の和:4679

約数の個数: 32

約数和(自身を含む): 46206720

約数和(自身を除く): 24904936

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 83, 166, 332, 581, 664, 1162, 2324, 4583, 4648, 9166, 18332, 32081, 36664, 64162, 128324, 256648, 380389, 760778, 1521556, 2662723, 3043112, 5325446, 10650892, 21301784]

約数ペア:

[(1, 21301784), (2, 10650892), (4, 5325446), (7, 3043112), (8, 2662723), (14, 1521556), (28, 760778), (56, 380389), (83, 256648), (166, 128324), (332, 64162), (581, 36664), (664, 32081), (1162, 18332), (2324, 9166), (4583, 4648)]