221247806

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{877}}^1$

素因数の和:1236

約数の個数: 32

約数和(自身を含む): 370530048

約数和(自身を除く): 149282242

約数列:

[1, 2, 13, 26, 31, 62, 313, 403, 626, 806, 877, 1754, 4069, 8138, 9703, 11401, 19406, 22802, 27187, 54374, 126139, 252278, 274501, 353431, 549002, 706862, 3568513, 7137026, 8509531, 17019062, 110623903, 221247806]

約数ペア:

[(1, 221247806), (2, 110623903), (13, 17019062), (26, 8509531), (31, 7137026), (62, 3568513), (313, 706862), (403, 549002), (626, 353431), (806, 274501), (877, 252278), (1754, 126139), (4069, 54374), (8138, 27187), (9703, 22802), (11401, 19406)]