20877738

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:383

約数の個数: 64

約数和(自身を含む): 50353920

約数和(自身を除く): 29476182

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 61, 87, 122, 174, 183, 203, 281, 366, 406, 427, 562, 609, 843, 854, 1218, 1281, 1686, 1769, 1967, 2562, 3538, 3934, 5307, 5901, 8149, 10614, 11802, 12383, 16298, 17141, 24447, 24766, 34282, 37149, 48894, 51423, 57043, 74298, 102846, 114086, 119987, 171129, 239974, 342258, 359961, 497089, 719922, 994178, 1491267, 2982534, 3479623, 6959246, 10438869, 20877738]

約数ペア:

[(1, 20877738), (2, 10438869), (3, 6959246), (6, 3479623), (7, 2982534), (14, 1491267), (21, 994178), (29, 719922), (42, 497089), (58, 359961), (61, 342258), (87, 239974), (122, 171129), (174, 119987), (183, 114086), (203, 102846), (281, 74298), (366, 57043), (406, 51423), (427, 48894), (562, 37149), (609, 34282), (843, 24766), (854, 24447), (1218, 17141), (1281, 16298), (1686, 12383), (1769, 11802), (1967, 10614), (2562, 8149), (3538, 5901), (3934, 5307)]