12870921

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1163}}^1$

素因数の和:1221

約数の個数: 32

約数和(自身を含む): 21454848

約数和(自身を除く): 8583927

約数列:

[1, 3, 7, 17, 21, 31, 51, 93, 119, 217, 357, 527, 651, 1163, 1581, 3489, 3689, 8141, 11067, 19771, 24423, 36053, 59313, 108159, 138397, 252371, 415191, 612901, 757113, 1838703, 4290307, 12870921]

約数ペア:

[(1, 12870921), (3, 4290307), (7, 1838703), (17, 757113), (21, 612901), (31, 415191), (51, 252371), (93, 138397), (119, 108159), (217, 59313), (357, 36053), (527, 24423), (651, 19771), (1163, 11067), (1581, 8141), (3489, 3689)]