21787064

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12323}}^1$

素因数の和:12359

約数の個数: 32

約数和(自身を含む): 46584720

約数和(自身を除く): 24797656

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 12323, 24646, 49292, 98584, 160199, 209491, 320398, 418982, 640796, 837964, 1281592, 1675928, 2723383, 5446766, 10893532, 21787064]

約数ペア:

[(1, 21787064), (2, 10893532), (4, 5446766), (8, 2723383), (13, 1675928), (17, 1281592), (26, 837964), (34, 640796), (52, 418982), (68, 320398), (104, 209491), (136, 160199), (221, 98584), (442, 49292), (884, 24646), (1768, 12323)]