21190272

素因数分解:

$2^7\times 3^1\times {\mathrm{139}}^1\times {\mathrm{397}}^1$

素因数の和:553

約数の個数: 64

約数和(自身を含む): 56834400

約数和(自身を除く): 35644128

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 139, 192, 278, 384, 397, 417, 556, 794, 834, 1112, 1191, 1588, 1668, 2224, 2382, 3176, 3336, 4448, 4764, 6352, 6672, 8896, 9528, 12704, 13344, 17792, 19056, 25408, 26688, 38112, 50816, 53376, 55183, 76224, 110366, 152448, 165549, 220732, 331098, 441464, 662196, 882928, 1324392, 1765856, 2648784, 3531712, 5297568, 7063424, 10595136, 21190272]

約数ペア:

[(1, 21190272), (2, 10595136), (3, 7063424), (4, 5297568), (6, 3531712), (8, 2648784), (12, 1765856), (16, 1324392), (24, 882928), (32, 662196), (48, 441464), (64, 331098), (96, 220732), (128, 165549), (139, 152448), (192, 110366), (278, 76224), (384, 55183), (397, 53376), (417, 50816), (556, 38112), (794, 26688), (834, 25408), (1112, 19056), (1191, 17792), (1588, 13344), (1668, 12704), (2224, 9528), (2382, 8896), (3176, 6672), (3336, 6352), (4448, 4764)]