21119994

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{59}}^1\times {\mathrm{947}}^1$

素因数の和:1024

約数の個数: 64

約数和(自身を含む): 54604800

約数和(自身を除く): 33484806

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 59, 63, 118, 126, 177, 189, 354, 378, 413, 531, 826, 947, 1062, 1239, 1593, 1894, 2478, 2841, 3186, 3717, 5682, 6629, 7434, 8523, 11151, 13258, 17046, 19887, 22302, 25569, 39774, 51138, 55873, 59661, 111746, 119322, 167619, 178983, 335238, 357966, 391111, 502857, 782222, 1005714, 1173333, 1508571, 2346666, 3017142, 3519999, 7039998, 10559997, 21119994]

約数ペア:

[(1, 21119994), (2, 10559997), (3, 7039998), (6, 3519999), (7, 3017142), (9, 2346666), (14, 1508571), (18, 1173333), (21, 1005714), (27, 782222), (42, 502857), (54, 391111), (59, 357966), (63, 335238), (118, 178983), (126, 167619), (177, 119322), (189, 111746), (354, 59661), (378, 55873), (413, 51138), (531, 39774), (826, 25569), (947, 22302), (1062, 19887), (1239, 17046), (1593, 13258), (1894, 11151), (2478, 8523), (2841, 7434), (3186, 6629), (3717, 5682)]