19640852

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1483}}^1$

素因数の和:1548

約数の個数: 48

約数和(自身を含む): 43878912

約数和(自身を除く): 24238060

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 77, 86, 154, 172, 301, 308, 473, 602, 946, 1204, 1483, 1892, 2966, 3311, 5932, 6622, 10381, 13244, 16313, 20762, 32626, 41524, 63769, 65252, 114191, 127538, 228382, 255076, 446383, 456764, 701459, 892766, 1402918, 1785532, 2805836, 4910213, 9820426, 19640852]

約数ペア:

[(1, 19640852), (2, 9820426), (4, 4910213), (7, 2805836), (11, 1785532), (14, 1402918), (22, 892766), (28, 701459), (43, 456764), (44, 446383), (77, 255076), (86, 228382), (154, 127538), (172, 114191), (301, 65252), (308, 63769), (473, 41524), (602, 32626), (946, 20762), (1204, 16313), (1483, 13244), (1892, 10381), (2966, 6622), (3311, 5932)]