21263676

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1553}}^1$

素因数の和:1730

約数の個数: 48

約数和(自身を含む): 57087744

約数和(自身を除く): 35824068

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 163, 326, 489, 652, 978, 1141, 1553, 1956, 2282, 3106, 3423, 4564, 4659, 6212, 6846, 9318, 10871, 13692, 18636, 21742, 32613, 43484, 65226, 130452, 253139, 506278, 759417, 1012556, 1518834, 1771973, 3037668, 3543946, 5315919, 7087892, 10631838, 21263676]

約数ペア:

[(1, 21263676), (2, 10631838), (3, 7087892), (4, 5315919), (6, 3543946), (7, 3037668), (12, 1771973), (14, 1518834), (21, 1012556), (28, 759417), (42, 506278), (84, 253139), (163, 130452), (326, 65226), (489, 43484), (652, 32613), (978, 21742), (1141, 18636), (1553, 13692), (1956, 10871), (2282, 9318), (3106, 6846), (3423, 6212), (4564, 4659)]