21212982

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{8017}}^1$

素因数の和:8042

約数の個数: 48

約数和(自身を含む): 54843120

約数和(自身を除く): 33630138

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 98, 126, 147, 189, 294, 378, 441, 882, 1323, 2646, 8017, 16034, 24051, 48102, 56119, 72153, 112238, 144306, 168357, 216459, 336714, 392833, 432918, 505071, 785666, 1010142, 1178499, 1515213, 2356998, 3030426, 3535497, 7070994, 10606491, 21212982]

約数ペア:

[(1, 21212982), (2, 10606491), (3, 7070994), (6, 3535497), (7, 3030426), (9, 2356998), (14, 1515213), (18, 1178499), (21, 1010142), (27, 785666), (42, 505071), (49, 432918), (54, 392833), (63, 336714), (98, 216459), (126, 168357), (147, 144306), (189, 112238), (294, 72153), (378, 56119), (441, 48102), (882, 24051), (1323, 16034), (2646, 8017)]