21707936

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{277}}^1$

素因数の和:397

約数の個数: 48

約数和(自身を含む): 44835840

約数和(自身を除く): 23127904

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 79, 124, 158, 248, 277, 316, 496, 554, 632, 992, 1108, 1264, 2216, 2449, 2528, 4432, 4898, 8587, 8864, 9796, 17174, 19592, 21883, 34348, 39184, 43766, 68696, 78368, 87532, 137392, 175064, 274784, 350128, 678373, 700256, 1356746, 2713492, 5426984, 10853968, 21707936]

約数ペア:

[(1, 21707936), (2, 10853968), (4, 5426984), (8, 2713492), (16, 1356746), (31, 700256), (32, 678373), (62, 350128), (79, 274784), (124, 175064), (158, 137392), (248, 87532), (277, 78368), (316, 68696), (496, 43766), (554, 39184), (632, 34348), (992, 21883), (1108, 19592), (1264, 17174), (2216, 9796), (2449, 8864), (2528, 8587), (4432, 4898)]