21417352

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{947}}^1$

素因数の和:1221

約数の個数: 32

約数和(自身を含む): 44025120

約数和(自身を除く): 22607768

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 257, 514, 947, 1028, 1894, 2056, 2827, 3788, 5654, 7576, 10417, 11308, 20834, 22616, 41668, 83336, 243379, 486758, 973516, 1947032, 2677169, 5354338, 10708676, 21417352]

約数ペア:

[(1, 21417352), (2, 10708676), (4, 5354338), (8, 2677169), (11, 1947032), (22, 973516), (44, 486758), (88, 243379), (257, 83336), (514, 41668), (947, 22616), (1028, 20834), (1894, 11308), (2056, 10417), (2827, 7576), (3788, 5654)]