686883813

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1009}}^1$

素因数の和:1458

約数の個数: 48

約数和(自身を含む): 1166137920

約数和(自身を除く): 479254107

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 421, 539, 1009, 1263, 1617, 2947, 3027, 4631, 7063, 8841, 11099, 13893, 20629, 21189, 32417, 33297, 49441, 61887, 77693, 97251, 148323, 226919, 233079, 424789, 543851, 680757, 1274367, 1631553, 2973523, 4672679, 8920569, 14018037, 20814661, 32708753, 62443983, 98126259, 228961271, 686883813]

約数ペア:

[(1, 686883813), (3, 228961271), (7, 98126259), (11, 62443983), (21, 32708753), (33, 20814661), (49, 14018037), (77, 8920569), (147, 4672679), (231, 2973523), (421, 1631553), (539, 1274367), (1009, 680757), (1263, 543851), (1617, 424789), (2947, 233079), (3027, 226919), (4631, 148323), (7063, 97251), (8841, 77693), (11099, 61887), (13893, 49441), (20629, 33297), (21189, 32417)]