21591776

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{439}}^1$

素因数の和:531

約数の個数: 48

約数和(自身を含む): 44906400

約数和(自身を除く): 23314624

約数列:

[1, 2, 4, 8, 16, 29, 32, 53, 58, 106, 116, 212, 232, 424, 439, 464, 848, 878, 928, 1537, 1696, 1756, 3074, 3512, 6148, 7024, 12296, 12731, 14048, 23267, 24592, 25462, 46534, 49184, 50924, 93068, 101848, 186136, 203696, 372272, 407392, 674743, 744544, 1349486, 2698972, 5397944, 10795888, 21591776]

約数ペア:

[(1, 21591776), (2, 10795888), (4, 5397944), (8, 2698972), (16, 1349486), (29, 744544), (32, 674743), (53, 407392), (58, 372272), (106, 203696), (116, 186136), (212, 101848), (232, 93068), (424, 50924), (439, 49184), (464, 46534), (848, 25462), (878, 24592), (928, 23267), (1537, 14048), (1696, 12731), (1756, 12296), (3074, 7024), (3512, 6148)]