21371256

素因数分解:

$2^3\times 3^3\times {\mathrm{163}}^1\times {\mathrm{607}}^1$

素因数の和:785

約数の個数: 64

約数和(自身を含む): 59827200

約数和(自身を除く): 38455944

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 163, 216, 326, 489, 607, 652, 978, 1214, 1304, 1467, 1821, 1956, 2428, 2934, 3642, 3912, 4401, 4856, 5463, 5868, 7284, 8802, 10926, 11736, 14568, 16389, 17604, 21852, 32778, 35208, 43704, 65556, 98941, 131112, 197882, 296823, 395764, 593646, 791528, 890469, 1187292, 1780938, 2374584, 2671407, 3561876, 5342814, 7123752, 10685628, 21371256]

約数ペア:

[(1, 21371256), (2, 10685628), (3, 7123752), (4, 5342814), (6, 3561876), (8, 2671407), (9, 2374584), (12, 1780938), (18, 1187292), (24, 890469), (27, 791528), (36, 593646), (54, 395764), (72, 296823), (108, 197882), (163, 131112), (216, 98941), (326, 65556), (489, 43704), (607, 35208), (652, 32778), (978, 21852), (1214, 17604), (1304, 16389), (1467, 14568), (1821, 11736), (1956, 10926), (2428, 8802), (2934, 7284), (3642, 5868), (3912, 5463), (4401, 4856)]