211686237

素因数分解:

$3^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{7517}}^1$

素因数の和:7682

約数の個数: 32

約数和(自身を含む): 360864000

約数和(自身を除く): 149177763

約数列:

[1, 3, 7, 9, 21, 27, 63, 149, 189, 447, 1043, 1341, 3129, 4023, 7517, 9387, 22551, 28161, 52619, 67653, 157857, 202959, 473571, 1120033, 1420713, 3360099, 7840231, 10080297, 23520693, 30240891, 70562079, 211686237]

約数ペア:

[(1, 211686237), (3, 70562079), (7, 30240891), (9, 23520693), (21, 10080297), (27, 7840231), (63, 3360099), (149, 1420713), (189, 1120033), (447, 473571), (1043, 202959), (1341, 157857), (3129, 67653), (4023, 52619), (7517, 28161), (9387, 22551)]