21115464

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:422

約数の個数: 64

約数和(自身を含む): 55226880

約数和(自身を除く): 34111416

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 101, 124, 186, 202, 248, 281, 303, 372, 404, 562, 606, 744, 808, 843, 1124, 1212, 1686, 2248, 2424, 3131, 3372, 6262, 6744, 8711, 9393, 12524, 17422, 18786, 25048, 26133, 28381, 34844, 37572, 52266, 56762, 69688, 75144, 85143, 104532, 113524, 170286, 209064, 227048, 340572, 681144, 879811, 1759622, 2639433, 3519244, 5278866, 7038488, 10557732, 21115464]

約数ペア:

[(1, 21115464), (2, 10557732), (3, 7038488), (4, 5278866), (6, 3519244), (8, 2639433), (12, 1759622), (24, 879811), (31, 681144), (62, 340572), (93, 227048), (101, 209064), (124, 170286), (186, 113524), (202, 104532), (248, 85143), (281, 75144), (303, 69688), (372, 56762), (404, 52266), (562, 37572), (606, 34844), (744, 28381), (808, 26133), (843, 25048), (1124, 18786), (1212, 17422), (1686, 12524), (2248, 9393), (2424, 8711), (3131, 6744), (3372, 6262)]