21683784

素因数分解:

$2^3\times 3^1\times {\mathrm{53}}^1\times {\mathrm{17047}}^1$

素因数の和:17109

約数の個数: 32

約数和(自身を含む): 55235520

約数和(自身を除く): 33551736

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 318, 424, 636, 1272, 17047, 34094, 51141, 68188, 102282, 136376, 204564, 409128, 903491, 1806982, 2710473, 3613964, 5420946, 7227928, 10841892, 21683784]

約数ペア:

[(1, 21683784), (2, 10841892), (3, 7227928), (4, 5420946), (6, 3613964), (8, 2710473), (12, 1806982), (24, 903491), (53, 409128), (106, 204564), (159, 136376), (212, 102282), (318, 68188), (424, 51141), (636, 34094), (1272, 17047)]