21241272

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^2\times {\mathrm{5237}}^1$

素因数の和:5272

約数の個数: 48

約数和(自身を含む): 57513240

約数和(自身を除く): 36271968

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 169, 312, 338, 507, 676, 1014, 1352, 2028, 4056, 5237, 10474, 15711, 20948, 31422, 41896, 62844, 68081, 125688, 136162, 204243, 272324, 408486, 544648, 816972, 885053, 1633944, 1770106, 2655159, 3540212, 5310318, 7080424, 10620636, 21241272]

約数ペア:

[(1, 21241272), (2, 10620636), (3, 7080424), (4, 5310318), (6, 3540212), (8, 2655159), (12, 1770106), (13, 1633944), (24, 885053), (26, 816972), (39, 544648), (52, 408486), (78, 272324), (104, 204243), (156, 136162), (169, 125688), (312, 68081), (338, 62844), (507, 41896), (676, 31422), (1014, 20948), (1352, 15711), (2028, 10474), (4056, 5237)]