21576412

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{563}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 45101952

約数和(自身を除く): 23525540

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 67, 134, 143, 268, 286, 563, 572, 737, 871, 1126, 1474, 1742, 2252, 2948, 3484, 6193, 7319, 9581, 12386, 14638, 19162, 24772, 29276, 37721, 38324, 75442, 80509, 150884, 161018, 322036, 414931, 490373, 829862, 980746, 1659724, 1961492, 5394103, 10788206, 21576412]

約数ペア:

[(1, 21576412), (2, 10788206), (4, 5394103), (11, 1961492), (13, 1659724), (22, 980746), (26, 829862), (44, 490373), (52, 414931), (67, 322036), (134, 161018), (143, 150884), (268, 80509), (286, 75442), (563, 38324), (572, 37721), (737, 29276), (871, 24772), (1126, 19162), (1474, 14638), (1742, 12386), (2252, 9581), (2948, 7319), (3484, 6193)]