21215488

素因数分解:

$2^8\times 7^1\times {\mathrm{11839}}^1$

素因数の和:11862

約数の個数: 36

約数和(自身を含む): 48401920

約数和(自身を除く): 27186432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792, 11839, 23678, 47356, 82873, 94712, 165746, 189424, 331492, 378848, 662984, 757696, 1325968, 1515392, 2651936, 3030784, 5303872, 10607744, 21215488]

約数ペア:

[(1, 21215488), (2, 10607744), (4, 5303872), (7, 3030784), (8, 2651936), (14, 1515392), (16, 1325968), (28, 757696), (32, 662984), (56, 378848), (64, 331492), (112, 189424), (128, 165746), (224, 94712), (256, 82873), (448, 47356), (896, 23678), (1792, 11839)]