66478839

素因数分解:

$3^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{3301}}^1$

素因数の和:3455

約数の個数: 24

約数和(自身を含む): 103894128

約数和(自身を除く): 37415289

約数列:

[1, 3, 7, 21, 49, 137, 147, 411, 959, 2877, 3301, 6713, 9903, 20139, 23107, 69321, 161749, 452237, 485247, 1356711, 3165659, 9496977, 22159613, 66478839]

約数ペア:

[(1, 66478839), (3, 22159613), (7, 9496977), (21, 3165659), (49, 1356711), (137, 485247), (147, 452237), (411, 161749), (959, 69321), (2877, 23107), (3301, 20139), (6713, 9903)]